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Tim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017 Mr. Mark Dennen Principal Environmental Scientist Rhode Island Department of Environmental Management 235 Promenade Street Providence, Rhode Island 02908-5767 Re: Quarterly Report 2nd Quarter 2017 Former Portsmouth Landfill Dear: Mr. Dennen: This Quarterly Report is submitted on behalf of AP Enterprise, LLC (APE) regarding the Portsmouth Landfill (the Property) per the Beneficial Use Determination Approval (BUDA) which was issued by the Rhode Island Department of Environmental Management (RIDEM) on September 20, 2010, amended on March 11, 2011 and March 18, 2014 and most recently renewed on September 9, 2014. On September 20, 2015 the BUDA expired. This report covers activities conducted during the period of April 1 to June 30, 2017. Construction Activities Construction activities during this reporting period consisted of: The delivery and management of newly accepted final capping soil; The delivery and management of soils per Appendix A of the RIDEM Rules and Regulations for Composting and Solid Waste Management Facilities (the Appendix A Soils); and Erosion control activities. Photos of the Property are attached as Appendix A. Soil Accepted The attached table summarizes the soils delivered to the Property during this reporting period. The supporting laboratory analysis data reports for the soil reported on the table (with the exception of the Appendix A soils) is provided electronically on the enclosed disk. Please note that the data package also contains data for soil that was not taken to the landfill. In order
Transcript
Page 1: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Tim O’Connor & Company, LLC environmental consultation

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

August 11, 2017

Mr. Mark Dennen

Principal Environmental Scientist

Rhode Island Department of Environmental Management

235 Promenade Street

Providence, Rhode Island 02908-5767

Re: Quarterly Report – 2nd Quarter 2017

Former Portsmouth Landfill

Dear: Mr. Dennen:

This Quarterly Report is submitted on behalf of AP Enterprise, LLC (APE) regarding the

Portsmouth Landfill (the Property) per the Beneficial Use Determination Approval (BUDA)

which was issued by the Rhode Island Department of Environmental Management (RIDEM) on

September 20, 2010, amended on March 11, 2011 and March 18, 2014 and most recently

renewed on September 9, 2014. On September 20, 2015 the BUDA expired.

This report covers activities conducted during the period of April 1 to June 30, 2017.

Construction Activities

Construction activities during this reporting period consisted of:

The delivery and management of newly accepted final capping soil;

The delivery and management of soils per Appendix A of the RIDEM Rules and

Regulations for Composting and Solid Waste Management Facilities (the Appendix A

Soils); and

Erosion control activities.

Photos of the Property are attached as Appendix A.

Soil Accepted

The attached table summarizes the soils delivered to the Property during this reporting period.

The supporting laboratory analysis data reports for the soil reported on the table (with the

exception of the Appendix A soils) is provided electronically on the enclosed disk. Please note

that the data package also contains data for soil that was not taken to the landfill. In order

Page 2: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

August 11, 2017 Page 2

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

identify the data for the soil accepted at Portsmouth, a table developed by the generator’s

consultant is included with the data package.

Complaints

No complaints were received directly by APE during this reporting period.

Schedule

The APE project team estimates that approximately 12,000 cubic yards will be required to

complete the capping project. It is important to note that due to settlement and compaction, the

final volume of capping soil required to cap the landfill is driven by existing conditions and the

elevations in the approved final site grading plan and will not be determined until the project is

very close to meeting the elevations in the grading plan.

Monitoring

Enclosed is a copy of the Limited Surface Investigation & Groundwater & Landfill Gas

Monitoring Report, dated July 31, 2017 by ATC Group Services LLC. The next round of

sampling will take place in August 2017.

Please feel free to contact me should you have any questions regarding this matter.

Sincerely

TIM O’CONNOR & COMPANY, LLC

Timothy M. O’Connor, PE, LEED-AP

Principal

Page 3: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Former Portsmouth Landfill Soils Accepted

2nd Quarter 2017

Delivery Dates Source Consultant Quantity (tons)

April 19, 20, 21 Weir Street, Tauton, MA Brighter Horizons 1,359.03

May 8, 9, 10, 11 * Department of Public Works Oxford, MA Capital Environmental LLC 1,644.99

May 9 * Department of Public Works Uxbridge, MA Capital Environmental LLC 403.8

May 30 * Department of Public Works Douglas, MA Capital Environmental LLC 151.02

May 30, 31, June 1 * Department of Public Works Northborough, Ma Capital Environmental LLC 528.91

June 21 & 23 162 Chandler Street; Naval Station Newport Riverhawk Environmental 225

Total 4,312.75

Notes

1. * - Indicates soils reguilated per Appendix A of the RIDEM Rules and Regulations for Composting and Solid Waste Management Facilities

Page 4: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

Appendix A – Photographs

Page 5: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

Photo 1 – Along Park Avenue Looking Northeast

Photo 2 – Along Eastern Limit of Disturbance

Page 6: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

Photo 3 – Along Eastern Limit of Disturbance Looking South

Photo 4 – Central Portion of Site Looking North

Page 7: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

Photo 5 – North-Western Limit of Disturbance

Photo 6 – Near Northern Limit of Disturbance

Page 8: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC

Appendix B – Analytical Data (on disk)

Page 9: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

CERTIFICATE OF ANALYSIS

William Kenney

River Hawk Environmental, LLC

2183 Ocean Street, Suite 2

Marshfield, MA 02050

RE: General Public Works Projects (1070105)

ESS Laboratory Work Order Number: 1611473

This signed Certificate of Analysis is our approved release of your analytical results. These results are

only representative of sample aliquots received at the laboratory. ESS Laboratory expects its clients to

follow all regulatory sampling guidelines. Beginning with this page, the entire report has been paginated.

This report should not be copied except in full without the approval of the laboratory. Samples will be

disposed of thirty days after the final report has been delivered. If you have any questions or concerns,

please feel free to call our Customer Service Department.

Laurel Stoddard

Laboratory Director

Analytical Summary

The project as described above has been analyzed in accordance with the ESS Quality Assurance Plan.

This plan utilizes the following methodologies: US EPA SW-846, US EPA Methods for Chemical

Analysis of Water and Wastes per 40 CFR Part 136, APHA Standard Methods for the Examination of

Water and Wastewater, American Society for Testing and Materials (ASTM), and other recognized

methodologies. The analyses with these noted observations are in conformance to the Quality Assurance

Plan. In chromatographic analysis, manual integration is frequently used instead of automated

integration because it produces more accurate results.

The test results present in this report are in compliance with NELAC Standards, A2LA and/or client

Quality Assurance Project Plans (QAPP). The laboratory has reviewed the following: Sample

Preservations, Hold Times, Initial Calibrations, Continuing Calibrations, Method Blanks, Blank Spikes,

Blank Spike Duplicates, Duplicates, Matrix Spikes, Matrix Spike Duplicates, Surrogates and Internal

Standards. Any results which were found to be outside of the recommended ranges stated in our SOPs

will be noted in the Project Narrative.

Subcontracted Analyses

Particle SizeCTS - Cranston, RI

AsbestosProScience Analytical Services, Inc. -

Woburn, MA

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 1 of 61

SMorrell
Reviewed
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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

SAMPLE RECEIPT

The following samples were received on November 16, 2016 for the analyses specified on the enclosed Chain of Custody

Record.

Low Level VOA vials were frozen by ESS Laboratory on November 16, 2016 at 17:30.

Lab Number MatrixSample Name AnalysisStockpile #104 §, 1010, 1311, 1311/6010C, 1311/7470A,

1311/8081B, 1311/8151A, 1311/8260B,

1311/8270D, 6010C, 6020A, 7.3.3.2, 7.3.4.1,

7196A, 7471B, 8081B, 8082A, 8100M, 8260B Low,

8270D, 9014, 9045, 9050A, CALC

Soil1611473-01

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 2 of 61

Page 11: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

PROJECT NARRATIVE

1311/8260B Volatile TCLP CompoundsBlank Spike recovery is above upper control limit (B+).CK62138-BS1

Vinyl Chloride (133% @ 70-130%)

1311/8270D Semi Volatile TCLP CompoundsSurrogate recovery(ies) above upper control limit (S+).CK61836-BLK1

2,4,6-Tribromophenol (114% @ 15-110%)

Surrogate recovery(ies) above upper control limit (S+).CK61836-BS1

2,4,6-Tribromophenol (121% @ 15-110%)

Surrogate recovery(ies) above upper control limit (S+).CK61836-BSD1

2,4,6-Tribromophenol (121% @ 15-110%)

Calibration required quadratic regression (Q).CZK0334-CCV1

Pentachlorophenol (125% @ 80-120%)

Continuing Calibration %Diff/Drift is above control limit (CD+).CZK0334-CCV1

2,4,6-Tribromophenol (24% @ 20%), Pentachlorophenol (25% @ 20%)

5035/8260B Volatile Organic Compounds / Low LevelRelative percent difference for duplicate is outside of criteria (D+).CK61825-BSD1

Acetone (26% @ 25%)

8081B Organochlorine PesticidesContinuing Calibration %Diff/Drift is below control limit (CD-).CZK0227-CCV9

Decachlorobiphenyl (35% @ 20%), Decachlorobiphenyl [2C] (37% @ 20%)

Continuing Calibration %Diff/Drift is below control limit (CD-).CZK0306-CCV1

Decachlorobiphenyl [2C] (24% @ 20%)

Continuing Calibration %Diff/Drift is below control limit (CD-).CZK0306-CCV3

Decachlorobiphenyl (27% @ 20%), Decachlorobiphenyl [2C] (28% @ 20%)

Continuing Calibration %Diff/Drift is above control limit (CD+).CZK0306-CCV5

Decachlorobiphenyl (30% @ 20%)

8100M Total Petroleum HydrocarbonsContinuing Calibration %Diff/Drift is above control limit (CD+).CZK0243-CCV2

Triacontane (C30) (25% @ 20%)

8270D Semi-Volatile Organic CompoundsRelative percent difference for duplicate is outside of criteria (D+).CK61612-BSD1

Hexachlorocyclopentadiene (32% @ 30%)

Calibration required quadratic regression (Q).CZK0238-CCV1

2,4-Dinitrophenol (82% @ 80-120%), Benzoic Acid (90% @ 80-120%), Pentachlorophenol (91% @

80-120%)

Continuing Calibration %Diff/Drift is below control limit (CD-).CZK0238-CCV1

Hexachlorocyclopentadiene (30% @ 20%)

Surrogate recovery(ies) above upper control limit (S+).CZK0238-CCV1

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 3 of 61

Page 12: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

2-Fluorophenol (124% @ 80-120%)

Continuing Calibration %Diff/Drift is above control limit (CD+).CZK0312-CCV1

2,4,5-Trichlorophenol (22% @ 20%), 2,4,6-Trichlorophenol (24% @ 20%), Benzoic Acid (37% @ 20%),

Pentachlorophenol (23% @ 20%)

Continuing Calibration %Diff/Drift is below control limit (CD-).CZK0312-CCV1

Hexachlorocyclopentadiene (22% @ 20%)

Total MetalsBlank Spike recovery is above upper control limit (B+).CK61712-BSD1

Antimony (129% @ 80-120%)

Blank Spike recovery is below lower control limit (B-).CK61712-BSD1

Arsenic (75% @ 80-120%)

End of Project Narrative.

No other observations noted.

DATA USABILITY LINKS

Definitions of Quality Control Parameters

Semivolatile Organics Internal Standard Information

Volatile Organics Internal Standard Information

Volatile Organics Surrogate Information

Semivolatile Organics Surrogate Information

EPH and VPH Alkane Lists

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 4 of 61

Page 13: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

CURRENT SW-846 METHODOLOGY VERSIONS

Prep Methods

3005A - Aqueous ICP Digestion

3020A - Aqueous Graphite Furnace / ICP MS Digestion

3050B - Solid ICP / Graphite Furnace / ICP MS Digestion

3060A - Solid Hexavalent Chromium Digestion

3510C - Separatory Funnel Extraction

3520C - Liquid / Liquid Extraction

3540C - Manual Soxhlet Extraction

3541 - Automated Soxhlet Extraction

3546 - Microwave Extraction

3580A - Waste Dilution

5030B - Aqueous Purge and Trap

5030C - Aqueous Purge and Trap

5035 - Solid Purge and Trap

Analytical Methods

1010A - Flashpoint

6010C - ICP

6020A - ICP MS

7010 - Graphite Furnace

7196A - Hexavalent Chromium

7470A - Aqueous Mercury

7471B - Solid Mercury

8011 - EDB/DBCP/TCP

8015C - GRO/DRO

8081B - Pesticides

8082A - PCB

8100M - TPH

8151A - Herbicides

8260B - VOA

8270D - SVOA

8270D SIM - SVOA Low Level

9014 - Cyanide

9038 - Sulfate

9040C - Aqueous pH

9045D - Solid pH (Corrosivity)

9050A - Specific Conductance

9056A - Anions (IC)

9060A - TOC

9095B - Paint Filter

MADEP 04-1.1 - EPH / VPH

SW846 Reactivity Methods 7.3.3.2 (Reactive Cyanide) and 7.3.4.1 (Reactive Sulfide) have been withdrawn by EPA. These

methods are reported per client request and are not NELAP accredited.

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 5 of 61

Page 14: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Percent Solids: 96

Extraction Method: 3050B

Units: mg/kg dry

Total Metals

Analyte Results (MRL) MDL Method Limit DF Analyst Analyzed F/V BatchI/V6020A 2.18 100Antimony 20 NAR CK6171211/18/16 22:31 ND (0.48)

6010C 2.18 100Arsenic 1 KJK CK6171211/22/16 17:34 ND (2.40)

6010C 2.18 100Barium 1 KJK CK6171211/20/16 2:43 12.9 (2.40)

6010C 2.18 100Beryllium 1 KJK CK6171211/20/16 2:43 0.17 (0.11)

6010C 2.18 100Cadmium 1 KJK CK6171211/20/16 2:43 ND (0.48)

6010C 2.18 100Chromium 1 KJK CK6171211/20/16 2:43 6.3 (1.0)

6010C 2.18 100Copper 1 KJK CK6171211/20/16 2:43 6.77 (2.40)

6010C 2.18 100Lead 1 KJK CK6171211/20/16 2:43 ND (4.80)

6010C 2.18 100Manganese 1 KJK CK6171211/20/16 2:43 97.8 (0.96)

7471B 0.69 40Mercury 1 MJV CK6171311/18/16 14:14 ND (0.030)

6010C 2.18 100Nickel 1 KJK CK6171211/20/16 2:43 2.74 (2.40)

6020A 2.18 100Selenium 20 NAR CK6171211/18/16 22:31 ND (0.48)

6010C 2.18 100Silver 1 KJK CK6171211/20/16 2:43 ND (0.48)

6020A 2.18 100Thallium 20 NAR CK6171211/18/16 22:31 ND (0.48)

6010C 2.18 100Vanadium 1 KJK CK6171211/20/16 2:43 6.30 (0.96)

6010C 2.18 100Zinc 1 KJK CK6171211/20/16 2:43 20.6 (2.40)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 6 of 61

Page 15: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/23/16 10:30Analyst: JXSInitial Volume: 100

Final Volume: 5

Percent Solids: 96

Extraction Method: 3510C

Units: mg/L

1311/8081B Pesticide TCLP Compounds

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyzed Sequence Batch1311/8081BChlordane (Total) 1 CK62303CZK039411/23/16 13:44 ND (0.00500)

1311/8081BEndrin 1 CK62303CZK039411/23/16 13:44 ND (0.00050)

1311/8081Bgamma-BHC (Lindane) 1 CK62303CZK039411/23/16 13:44 ND (0.00050)

1311/8081BHeptachlor 1 CK62303CZK039411/23/16 13:44 ND (0.00050)

1311/8081BHeptachlor Epoxide 1 CK62303CZK039411/23/16 13:44 ND (0.00050)

1311/8081BMethoxychlor 1 CK62303CZK039411/23/16 13:44 ND (0.00050)

1311/8081BToxaphene 1 CK62303CZK039411/23/16 13:44 ND (0.0130)

%Recovery Qualifier Limits

30-15096 %Surrogate: Decachlorobiphenyl

30-15098 %Surrogate: Decachlorobiphenyl [2C]

30-15075 %Surrogate: Tetrachloro-m-xylene

30-15077 %Surrogate: Tetrachloro-m-xylene [2C]

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 7 of 61

Page 16: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Percent Solids: 96

Extraction Method: 3005A_TCLP

Units: mg/L

1311 TCLP Metals

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyst Analyzed F/V BatchI/V1311/6010C 50 50Arsenic 1 NAR CK6184011/21/16 19:48 ND (0.050)

1311/6010C 50 50Barium 1 KJK CK6184011/20/16 0:55 0.141 (0.050)

1311/6010C 50 50Cadmium 1 KJK CK6184011/20/16 0:55 ND (0.0100)

1311/6010C 50 50Chromium 1 KJK CK6184011/20/16 0:55 ND (0.020)

1311/6010C 50 50Lead 1 KJK CK6184011/20/16 0:55 ND (0.050)

1311/7470A 20 40Mercury 1 AA CK6170611/21/16 13:58 ND (0.00050)

1311/6010C 50 50Selenium 1 KJK CK6184011/20/16 0:55 ND (0.050)

1311/6010C 50 50Silver 1 KJK CK6184011/20/16 0:55 ND (0.010)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 8 of 61

Page 17: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/22/16 15:30Analyst: JXSInitial Volume: 35

Final Volume: 4

Percent Solids: 96

Extraction Method: 3510C

Units: mg/L

1311/8151A TCLP Herbicide Compounds

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyzed Sequence Batch1311/8151A2,4,5-TP (Silvex) 1 CK62244CZK036311/22/16 22:36 ND (0.002)

1311/8151A2,4-D 1 CK62244CZK036311/22/16 22:36 ND (0.009)

%Recovery Qualifier Limits

30-150111 %Surrogate: DCAA

30-15091 %Surrogate: DCAA [2C]

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 9 of 61

Page 18: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Analyst: GEMInitial Volume: 5Final Volume: 5

Percent Solids: 96

Extraction Method: 5030B

Units: mg/L

1311/8260B Volatile TCLP Compounds

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyzed Sequence Batch1311/8260B1,1-Dichloroethene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260B1,2-Dichloroethane 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260B1,4-Dichlorobenzene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260B2-Butanone 100 CK62138CZK033011/21/16 21:42 ND (2.50)

1311/8260BBenzene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BCarbon Tetrachloride 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BChlorobenzene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BChloroform 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BTetrachloroethene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BTrichloroethene 100 CK62138CZK033011/21/16 21:42 ND (0.100)

1311/8260BVinyl Chloride 100 CK62138CZK033011/21/16 21:42 ND (0.100)

%Recovery Qualifier Limits

70-130113 %Surrogate: 1,2-Dichloroethane-d4

70-130105 %Surrogate: 4-Bromofluorobenzene

70-130100 %Surrogate: Dibromofluoromethane

70-130112 %Surrogate: Toluene-d8

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 10 of 61

Page 19: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/18/16 16:22Analyst: TJInitial Volume: 200

Final Volume: 1

Percent Solids: 96

Extraction Method: 3520C

Units: mg/L

1311/8270D Semi Volatile TCLP Compounds

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyzed Sequence Batch1311/8270D2,4,5-Trichlorophenol 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270D2,4,6-Trichlorophenol 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270D2,4-Dinitrotoluene 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270D2-Methylphenol 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270D3+4-Methylphenol 1 CK61836CZK033411/22/16 1:47 ND (0.10)

1311/8270DHexachlorobenzene 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270DHexachlorobutadiene 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270DHexachloroethane 1 CK61836CZK033411/22/16 1:47 ND (0.02)

1311/8270DNitrobenzene 1 CK61836CZK033411/22/16 1:47 ND (0.05)

1311/8270DPentachlorophenol 1 CK61836CZK033411/22/16 1:47 ND (0.25)

1311/8270DPyridine 1 CK61836CZK033411/22/16 1:47 ND (0.50)

%Recovery Qualifier Limits

30-13072 %Surrogate: 1,2-Dichlorobenzene-d4

15-110109 %Surrogate: 2,4,6-Tribromophenol

15-11073 %Surrogate: 2-Chlorophenol-d4

30-13081 %Surrogate: 2-Fluorobiphenyl

15-11070 %Surrogate: 2-Fluorophenol

30-13082 %Surrogate: Nitrobenzene-d5

15-11081 %Surrogate: Phenol-d6

30-13093 %Surrogate: p-Terphenyl-d14

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 11 of 61

Page 20: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Percent Solids: 96

Extraction Method: [CALC]

Units: mg/kg dry

Total Metals Solid

Analyte Results (MRL) MDL Method Limit DF Analyst Analyzed F/V BatchI/VCALC 1 1Chromium (III) 1 EEM [CALC]11/22/16 14:00 6.3 (1.5)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 12 of 61

Page 21: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Analyst: MEKInitial Volume: 8.5Final Volume: 10

Percent Solids: 96

Extraction Method: 5035

Units: mg/kg dry

5035/8260B Volatile Organic Compounds / Low Level

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8260B Low1,1,1,2-Tetrachloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1,1-Trichloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1,2,2-Tetrachloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1,2-Trichloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1-Dichloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1-Dichloroethene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,1-Dichloropropene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2,3-Trichlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2,3-Trichloropropane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2,4-Trichlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2,4-Trimethylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2-Dibromo-3-Chloropropane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2-Dibromoethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2-Dichlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2-Dichloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,2-Dichloropropane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,3,5-Trimethylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,3-Dichlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,3-Dichloropropane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,4-Dichlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low1,4-Dioxane 1 CK61825CZK029111/18/16 17:43 ND (0.0616)

8260B Low1-Chlorohexane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low2,2-Dichloropropane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low2-Butanone 1 CK61825CZK029111/18/16 17:43 ND (0.0308)

8260B Low2-Chlorotoluene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low2-Hexanone 1 CK61825CZK029111/18/16 17:43 ND (0.0308)

8260B Low4-Chlorotoluene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low4-Isopropyltoluene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Low4-Methyl-2-Pentanone 1 CK61825CZK029111/18/16 17:43 ND (0.0308)

8260B LowAcetone 1 CK61825CZK029111/18/16 17:43 ND (0.0308)

8260B LowBenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowBromobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 13 of 61

Page 22: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Analyst: MEKInitial Volume: 8.5Final Volume: 10

Percent Solids: 96

Extraction Method: 5035

Units: mg/kg dry

5035/8260B Volatile Organic Compounds / Low Level

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8260B LowBromochloromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowBromodichloromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowBromoform 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowBromomethane 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B LowCarbon Disulfide 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowCarbon Tetrachloride 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowChlorobenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowChloroethane 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B LowChloroform 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowChloromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B Lowcis-1,2-Dichloroethene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lowcis-1,3-Dichloropropene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowDibromochloromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowDibromomethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowDichlorodifluoromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B LowDiethyl Ether 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowDi-isopropyl ether 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowEthyl tertiary-butyl ether 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowEthylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowHexachlorobutadiene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowIsopropylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowMethyl tert-Butyl Ether 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowMethylene Chloride 1 CK61825CZK029111/18/16 17:43 ND (0.0154)

8260B LowNaphthalene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lown-Butylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lown-Propylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lowsec-Butylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowStyrene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lowtert-Butylbenzene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowTertiary-amyl methyl ether 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowTetrachloroethene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowTetrahydrofuran 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 14 of 61

Page 23: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Analyst: MEKInitial Volume: 8.5Final Volume: 10

Percent Solids: 96

Extraction Method: 5035

Units: mg/kg dry

5035/8260B Volatile Organic Compounds / Low Level

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8260B LowToluene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lowtrans-1,2-Dichloroethene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B Lowtrans-1,3-Dichloropropene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowTrichloroethene 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowTrichlorofluoromethane 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowVinyl Acetate 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowVinyl Chloride 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B LowXylene O 1 CK61825CZK029111/18/16 17:43 ND (0.0031)

8260B LowXylene P,M 1 CK61825CZK029111/18/16 17:43 ND (0.0062)

8260B LowXylenes (Total) 1 [CALC]11/18/16 17:43 ND (0.0062)

%Recovery Qualifier Limits

70-130116 %Surrogate: 1,2-Dichloroethane-d4

70-130108 %Surrogate: 4-Bromofluorobenzene

70-130101 %Surrogate: Dibromofluoromethane

70-130102 %Surrogate: Toluene-d8

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 15 of 61

Page 24: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 10:00Analyst: JXSInitial Volume: 20.1

Final Volume: 5

Percent Solids: 96

Extraction Method: 3546

Units: mg/kg dry

8081B Organochlorine Pesticides

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8081BChlordane (Total) 1 CK61609CZK030611/19/16 1:42 ND (0.0313)

8081BDieldrin 1 CK61609CZK030611/19/16 1:42 ND (0.0026)

%Recovery Qualifier Limits

30-15060 %Surrogate: Decachlorobiphenyl

30-15060 %Surrogate: Decachlorobiphenyl [2C]

30-15079 %Surrogate: Tetrachloro-m-xylene

30-15074 %Surrogate: Tetrachloro-m-xylene [2C]

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 16 of 61

Page 25: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 11:02Analyst: SMRInitial Volume: 19.8

Final Volume: 10

Percent Solids: 96

Extraction Method: 3540C

Units: mg/kg dry

8082A Polychlorinated Biphenyls (PCB)

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8082AAroclor 1016 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1221 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1232 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1242 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1248 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1254 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1260 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1262 1 CK6160711/18/16 14:12 ND (0.0529)

8082AAroclor 1268 1 CK6160711/18/16 14:12 ND (0.0529)

%Recovery Qualifier Limits

30-15064 %Surrogate: Decachlorobiphenyl

30-15057 %Surrogate: Decachlorobiphenyl [2C]

30-15066 %Surrogate: Tetrachloro-m-xylene

30-15067 %Surrogate: Tetrachloro-m-xylene [2C]

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 17 of 61

Page 26: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 10:00Analyst: DPSInitial Volume: 20.6

Final Volume: 1

Percent Solids: 96

Extraction Method: 3546

Units: mg/kg dry

8100M Total Petroleum Hydrocarbons

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8100MTotal Petroleum Hydrocarbons 1 CK61611CZK026511/17/16 17:04 89.0 (38.1)

%Recovery Qualifier Limits

40-14083 %Surrogate: O-Terphenyl

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 18 of 61

Page 27: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 10:00Analyst: TJInitial Volume: 15.3

Final Volume: 0.5

Percent Solids: 96

Extraction Method: 3546

Units: mg/kg dry

8270D Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8270D1,1-Biphenyl 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D1,2,4-Trichlorobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D1,2-Dichlorobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D1,3-Dichlorobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D1,4-Dichlorobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,3,4,6-Tetrachlorophenol 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270D2,4,5-Trichlorophenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,4,6-Trichlorophenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,4-Dichlorophenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,4-Dimethylphenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,4-Dinitrophenol 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270D2,4-Dinitrotoluene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2,6-Dinitrotoluene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Chloronaphthalene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Chlorophenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Methylnaphthalene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Methylphenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Nitroaniline 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D2-Nitrophenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D3,3´-Dichlorobenzidine 1 CK61612CZK031211/19/16 20:24 ND (0.685)

8270D3+4-Methylphenol 1 CK61612CZK031211/19/16 20:24 ND (0.685)

8270D3-Nitroaniline 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D4,6-Dinitro-2-Methylphenol 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270D4-Bromophenyl-phenylether 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D4-Chloro-3-Methylphenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D4-Chloroaniline 1 CK61612CZK031211/19/16 20:24 ND (0.685)

8270D4-Chloro-phenyl-phenyl ether 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D4-Nitroaniline 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270D4-Nitrophenol 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270DAcenaphthene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DAcenaphthylene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DAcetophenone 1 CK61612CZK031211/19/16 20:24 ND (0.685)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 19 of 61

Page 28: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 10:00Analyst: TJInitial Volume: 15.3

Final Volume: 0.5

Percent Solids: 96

Extraction Method: 3546

Units: mg/kg dry

8270D Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8270DAniline 1 CK61612CZK031211/19/16 20:24 ND (0.685)

8270DAnthracene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DAzobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DBenzo(a)anthracene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DBenzo(a)pyrene 1 CK61612CZK031211/19/16 20:24 ND (0.171)

8270DBenzo(b)fluoranthene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DBenzo(g,h,i)perylene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DBenzo(k)fluoranthene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DBenzoic Acid 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270DBenzyl Alcohol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270Dbis(2-Chloroethoxy)methane 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270Dbis(2-Chloroethyl)ether 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270Dbis(2-chloroisopropyl)Ether 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270Dbis(2-Ethylhexyl)phthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DButylbenzylphthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DCarbazole 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DChrysene 1 CK61612CZK031211/19/16 20:24 ND (0.171)

8270DDibenzo(a,h)Anthracene 1 CK61612CZK031211/19/16 20:24 ND (0.171)

8270DDibenzofuran 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DDiethylphthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DDimethylphthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DDi-n-butylphthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DDi-n-octylphthalate 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DFluoranthene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DFluorene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DHexachlorobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.171)

8270DHexachlorobutadiene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DHexachlorocyclopentadiene 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270DHexachloroethane 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DIndeno(1,2,3-cd)Pyrene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DIsophorone 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DNaphthalene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 20 of 61

Page 29: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 10:00Analyst: TJInitial Volume: 15.3

Final Volume: 0.5

Percent Solids: 96

Extraction Method: 3546

Units: mg/kg dry

8270D Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit DF Analyzed Sequence Batch8270DNitrobenzene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DN-Nitrosodimethylamine 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DN-Nitroso-Di-n-Propylamine 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DN-nitrosodiphenylamine 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DPentachlorophenol 1 CK61612CZK031211/19/16 20:24 ND (1.71)

8270DPhenanthrene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DPhenol 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DPyrene 1 CK61612CZK031211/19/16 20:24 ND (0.342)

8270DPyridine 1 CK61612CZK031211/19/16 20:24 ND (1.71)

%Recovery Qualifier Limits

30-13071 %Surrogate: 1,2-Dichlorobenzene-d4

30-13098 %Surrogate: 2,4,6-Tribromophenol

30-13077 %Surrogate: 2-Chlorophenol-d4

30-13073 %Surrogate: 2-Fluorobiphenyl

30-13074 %Surrogate: 2-Fluorophenol

30-13069 %Surrogate: Nitrobenzene-d5

30-13083 %Surrogate: Phenol-d6

30-13087 %Surrogate: p-Terphenyl-d14

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 21 of 61

Page 30: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Percent Solids: 96

Classical Chemistry

Analyte Results (MRL) MDL UnitsMethod Limit DF Analyst Analyzed Batch9050A umhos/cmConductivity 1 JLK CK6223611/22/16 16:00WL 73500 (5)

9045 S.U.Corrosivity (pH) 1 JLK CK6164411/16/16 22:34 8.25 (N/A)

Corrosivity (pH) Sample Temp Soil pH measured in water at 20.8 ºC.

1010 °FFlashpoint 1 CRR CK6174211/17/16 13:35> 200 (N/A)

7196A mg/kg dryHexavalent Chromium 1 EEM CK6222311/22/16 14:00 ND (0.6)

Particle Size See Attached (N/A)

7.3.3.2 mg/kgReactive Cyanide 1 EEM CK6222611/22/16 14:01 ND (2.0)

7.3.4.1 mg/kgReactive Sulfide 1 EEM CK6222611/22/16 14:01 ND (2.0)

9014 mg/kg dryTotal Cyanide 1 EEM CK6182311/18/16 11:20 4.08 (1.03)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 22 of 61

Page 31: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Units: %

Subcontracted Analysis

Analyte Results (MRL) MDL Method Limit DF Analyst Analyzed SequenceF/V BatchI/VAsbestos See Attached (N/A)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 23 of 61

Page 32: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 18:00Analyst: LABInitial Volume: 100

Final Volume: 2000

Percent Solids: 96

Extraction Method: 1311

Units: °C

TCLP Extraction by 1311

Analyte Results (MRL) MDL Method Limit DF Analyst Analyzed Batch1311Temperature (Min C) 1 LAB CK6175811/18/16 10:40 19.6 (N/A)

1311Temperature (Min C) 1 LAB CK6175811/18/16 10:40 19.6 (N/A)

1311Temperature (Max C) 1 LAB CK6175811/18/16 10:40 23.8 (N/A)

1311Temperature (Max C) 1 LAB CK6175811/18/16 10:40 23.8 (N/A)

Temperature (Range) Temperature is not within 23 +/-2 ºC. (N/A)

Temperature (Range) Temperature is not within 23 +/-2 ºC. (N/A)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 24 of 61

Page 33: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Client Sample ID: Stockpile #104

Date Sampled: 11/15/16 14:20

ESS Laboratory Sample ID: 1611473-01

Sample Matrix: Soil

Prepared: 11/17/16 18:50Analyst: GEMInitial Volume: 1

Final Volume: 1

Percent Solids: 96

Extraction Method: 1311/ZHE

Units: °C

ZHE Extraction by 1311

Analyte Results (MRL)TCLP

MDL Method Limit DF Analyst Analyzed Batch1311Temperature (Min C) 1 GEM CK6222811/18/16 12:10 21.5 (N/A)

1311Temperature (Max C) 1 GEM CK6222811/18/16 12:10 22.0 (N/A)

Temperature (Range) Temperature is within 23 +/-2 ºC. (N/A)

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 25 of 61

Page 34: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

Total Metals

Batch CK61712 - 3050B

Blank

0.50 mg/kg wetAntimony ND

2.50 mg/kg wetArsenic ND

2.50 mg/kg wetBarium ND

0.11 mg/kg wetBeryllium ND

0.50 mg/kg wetCadmium ND

1.0 mg/kg wetChromium ND

2.50 mg/kg wetCopper ND

5.00 mg/kg wetLead ND

1.00 mg/kg wetManganese ND

2.50 mg/kg wetNickel ND

0.50 mg/kg wetSelenium ND

0.50 mg/kg wetSilver ND

0.50 mg/kg wetThallium ND

1.00 mg/kg wetVanadium ND

2.50 mg/kg wetZinc ND

LCS

21.6 100.0 80-120117mg/kg wetAntimony 117

8.62 161.0 80-12081mg/kg wetArsenic 131

8.62 351.0 80-12094mg/kg wetBarium 329

0.38 89.40 80-12094mg/kg wetBeryllium 84.3

1.72 190.0 80-12088mg/kg wetCadmium 167

3.4 87.90 80-12092mg/kg wetChromium 81.3

8.62 258.0 80-12090mg/kg wetCopper 233

17.2 138.0 80-12094mg/kg wetLead 130

8.62 127.0 80-12099mg/kg wetNickel 125

21.6 305.0 80-12093mg/kg wetSelenium 282

1.72 58.00 80-12097mg/kg wetSilver 56.2

21.6 89.80 80-12084mg/kg wetThallium 75.1

3.45 81.60 80-12093mg/kg wetVanadium 76.1

8.62 173.0 80-12092mg/kg wetZinc 159

LCS

3.23 400.0 80-12091mg/kg wetManganese 366

LCS Dup

21.2 100.0 3080-120129 10mg/kg wetAntimony 129 B+

8.47 161.0 2080-12075 8mg/kg wetArsenic 121 B-

8.47 351.0 2080-12099 6mg/kg wetBarium 349

0.37 89.40 2080-12098 4mg/kg wetBeryllium 87.7

1.69 190.0 2080-12091 3mg/kg wetCadmium 173

3.4 87.90 2080-12096 4mg/kg wetChromium 84.6

8.47 258.0 2080-12094 3mg/kg wetCopper 241

16.9 138.0 2080-12099 5mg/kg wetLead 136

8.47 127.0 2080-120106 7mg/kg wetNickel 134

21.2 305.0 3080-120102 9mg/kg wetSelenium 310

1.69 58.00 2080-120102 5mg/kg wetSilver 59.0

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 26 of 61

Page 35: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

Total Metals

Batch CK61712 - 3050B

21.2 89.80 3080-12090 8mg/kg wetThallium 81.0

3.39 81.60 2080-12097 4mg/kg wetVanadium 79.0

8.47 173.0 2080-12097 5mg/kg wetZinc 168

LCS Dup

3.57 400.0 2080-12096 5mg/kg wetManganese 383

Batch CK61713 - 7471B

Blank

0.033 mg/kg wetMercury ND

LCS

1.90 15.90 80-120102mg/kg wetMercury 16.2

LCS Dup

1.87 15.90 2080-12098 4mg/kg wetMercury 15.6

1311/8081B Pesticide TCLP Compounds

Batch CK62303 - 3510C

Blank

0.00500 mg/LChlordane (Total) ND

0.00050 mg/LEndrin ND

0.00050 mg/Lgamma-BHC (Lindane) ND

0.00050 mg/LHeptachlor ND

0.00050 mg/LHeptachlor Epoxide ND

0.00050 mg/LMethoxychlor ND

0.0130 mg/LToxaphene ND

0.002500 30-150910.00227 mg/LSurrogate: Decachlorobiphenyl

0.002500 30-150910.00228 mg/LSurrogate: Decachlorobiphenyl [2C]

0.002500 30-150790.00198 mg/LSurrogate: Tetrachloro-m-xylene

0.002500 30-150810.00202 mg/LSurrogate: Tetrachloro-m-xylene [2C]

Blank

0.00500 mg/LChlordane (Total) ND

0.00050 mg/LEndrin ND

0.00050 mg/Lgamma-BHC (Lindane) ND

0.00050 mg/LHeptachlor ND

0.00050 mg/LHeptachlor Epoxide ND

0.00050 mg/LMethoxychlor ND

0.0130 mg/LToxaphene ND

0.002500 30-150990.00247 mg/LSurrogate: Decachlorobiphenyl

0.002500 30-1501000.00250 mg/LSurrogate: Decachlorobiphenyl [2C]

0.002500 30-150870.00217 mg/LSurrogate: Tetrachloro-m-xylene

0.002500 30-150890.00222 mg/LSurrogate: Tetrachloro-m-xylene [2C]

Blank

0.00500 mg/LChlordane (Total) ND

0.00050 mg/LEndrin ND

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 27 of 61

Page 36: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

1311/8081B Pesticide TCLP Compounds

Batch CK62303 - 3510C

0.00050 mg/Lgamma-BHC (Lindane) ND

0.00050 mg/LHeptachlor ND

0.00050 mg/LHeptachlor Epoxide ND

0.00050 mg/LMethoxychlor ND

0.0130 mg/LToxaphene ND

0.002500 30-150790.00197 mg/LSurrogate: Decachlorobiphenyl

0.002500 30-150900.00225 mg/LSurrogate: Decachlorobiphenyl [2C]

0.002500 30-150720.00180 mg/LSurrogate: Tetrachloro-m-xylene

0.002500 30-150760.00191 mg/LSurrogate: Tetrachloro-m-xylene [2C]

LCS

0.00050 40-140mg/LChlordane (Total) ND

0.00005 0.0002500 40-14096mg/LEndrin 0.00024

0.00005 0.0002500 40-14089mg/Lgamma-BHC (Lindane) 0.00022

0.00005 0.0002500 40-14080mg/LHeptachlor 0.00020

0.00005 0.0002500 40-14096mg/LHeptachlor Epoxide 0.00024

0.00005 0.0002500 40-140102mg/LMethoxychlor 0.00025

0.0002500 30-150810.000203 mg/LSurrogate: Decachlorobiphenyl

0.0002500 30-150820.000204 mg/LSurrogate: Decachlorobiphenyl [2C]

0.0002500 30-150830.000208 mg/LSurrogate: Tetrachloro-m-xylene

0.0002500 30-150830.000208 mg/LSurrogate: Tetrachloro-m-xylene [2C]

LCS Dup

0.00050 2040-140mg/LChlordane (Total) ND

0.00005 0.0002500 2040-140100 5mg/LEndrin 0.00025

0.00005 0.0002500 2040-14095 7mg/Lgamma-BHC (Lindane) 0.00024

0.00005 0.0002500 2040-14089 11mg/LHeptachlor 0.00022

0.00005 0.0002500 2040-140101 6mg/LHeptachlor Epoxide 0.00025

0.00005 0.0002500 2040-140105 3mg/LMethoxychlor 0.00026

0.0002500 30-150900.000226 mg/LSurrogate: Decachlorobiphenyl

0.0002500 30-150910.000228 mg/LSurrogate: Decachlorobiphenyl [2C]

0.0002500 30-150900.000226 mg/LSurrogate: Tetrachloro-m-xylene

0.0002500 30-150910.000228 mg/LSurrogate: Tetrachloro-m-xylene [2C]

1311 TCLP Metals

Batch CK61706 - 245.1/7470A

Blank

0.00050 mg/LMercury ND

Blank

0.00050 mg/LMercury ND

LCS

0.00050 0.006000 80-120115mg/LMercury 0.00691

LCS Dup

0.00050 0.006000 2080-120115 0.1mg/LMercury 0.00691

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 28 of 61

Page 37: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

1311 TCLP Metals

Batch CK61840 - 3005A_TCLP

Blank

0.050 mg/LArsenic ND

0.050 mg/LBarium ND

0.0100 mg/LCadmium ND

0.020 mg/LChromium ND

0.050 mg/LLead ND

0.050 mg/LSelenium ND

0.010 mg/LSilver ND

LCS

0.050 0.5000 80-12087mg/LArsenic 0.436

0.050 0.5000 80-12092mg/LBarium 0.458

0.0100 0.2500 80-12091mg/LCadmium 0.227

0.020 0.5000 80-12092mg/LChromium 0.460

0.050 0.5000 80-12091mg/LLead 0.455

0.050 1.000 80-12099mg/LSelenium 0.989

0.010 0.2500 80-12097mg/LSilver 0.243

LCS Dup

0.050 0.5000 2080-12093 7mg/LArsenic 0.467

0.050 0.5000 2080-12093 2mg/LBarium 0.467

0.0100 0.2500 2080-12094 4mg/LCadmium 0.236

0.020 0.5000 2080-12095 3mg/LChromium 0.473

0.050 0.5000 2080-12095 4mg/LLead 0.474

0.050 1.000 2080-120102 3mg/LSelenium 1.02

0.010 0.2500 2080-120100 3mg/LSilver 0.250

1311/8151A TCLP Herbicide Compounds

Batch CK62244 - 3510C

Blank

0.002 mg/L2,4,5-TP (Silvex) ND

0.002 mg/L2,4,5-TP (Silvex) [2C] ND

0.009 mg/L2,4-D ND

0.009 mg/L2,4-D [2C] ND

5.714 30-1501086.15 mg/LSurrogate: DCAA

5.714 30-150834.72 mg/LSurrogate: DCAA [2C]

Blank

0.002 mg/L2,4,5-TP (Silvex) ND

0.002 mg/L2,4,5-TP (Silvex) [2C] ND

0.009 mg/L2,4-D ND

0.009 mg/L2,4-D [2C] ND

5.714 30-1501267.22 mg/LSurrogate: DCAA

5.714 30-1501015.75 mg/LSurrogate: DCAA [2C]

LCS

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 29 of 61

Page 38: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

1311/8151A TCLP Herbicide Compounds

Batch CK62244 - 3510C

0.002 0.005429 40-14076mg/L2,4,5-TP (Silvex) 0.004

0.002 0.005429 40-14066mg/L2,4,5-TP (Silvex) [2C] 0.004

0.009 0.05371 40-14079mg/L2,4-D 0.042

0.009 0.05371 40-14077mg/L2,4-D [2C] 0.041

5.714 30-1501377.82 mg/LSurrogate: DCAA

5.714 30-1501136.43 mg/LSurrogate: DCAA [2C]

LCS Dup

0.002 0.005429 2040-14076 0mg/L2,4,5-TP (Silvex) 0.004

0.002 0.005429 2040-14070 6mg/L2,4,5-TP (Silvex) [2C] 0.004

0.009 0.05371 2040-14080 1mg/L2,4-D 0.043

0.009 0.05371 2040-14079 2mg/L2,4-D [2C] 0.042

5.714 30-1501186.75 mg/LSurrogate: DCAA

5.714 30-150965.49 mg/LSurrogate: DCAA [2C]

1311/8260B Volatile TCLP Compounds

Batch CK62138 - 5030B

Blank

0.0010 mg/L1,1-Dichloroethene ND

0.0010 mg/L1,2-Dichloroethane ND

0.0010 mg/L1,4-Dichlorobenzene ND

0.0250 mg/L2-Butanone ND

0.0010 mg/LBenzene ND

0.0010 mg/LCarbon Tetrachloride ND

0.0010 mg/LChlorobenzene ND

0.0010 mg/LChloroform ND

0.0010 mg/LTetrachloroethene ND

0.0010 mg/LTrichloroethene ND

0.0010 mg/LVinyl Chloride ND

0.02500 70-1301080.0269 mg/LSurrogate: 1,2-Dichloroethane-d4

0.02500 70-130930.0233 mg/LSurrogate: 4-Bromofluorobenzene

0.02500 70-130980.0245 mg/LSurrogate: Dibromofluoromethane

0.02500 70-1301110.0278 mg/LSurrogate: Toluene-d8

LCS

10.00 70-130113ug/L1,1-Dichloroethene 11.3

10.00 70-130102ug/L1,2-Dichloroethane 10.2

10.00 70-13097ug/L1,4-Dichlorobenzene 9.74

50.00 70-130110ug/L2-Butanone 55.1

10.00 70-130103ug/LBenzene 10.3

10.00 70-13081ug/LCarbon Tetrachloride 8.09

10.00 70-13098ug/LChlorobenzene 9.85

10.00 70-130106ug/LChloroform 10.6

10.00 70-130101ug/LTetrachloroethene 10.1

10.00 70-13091ug/LTrichloroethene 9.14

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 30 of 61

Page 39: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

1311/8260B Volatile TCLP Compounds

Batch CK62138 - 5030B

10.00 70-130133ug/LVinyl Chloride 13.3 B+

0.02500 70-1301020.0254 mg/LSurrogate: 1,2-Dichloroethane-d4

0.02500 70-130840.0209 mg/LSurrogate: 4-Bromofluorobenzene

0.02500 70-130940.0235 mg/LSurrogate: Dibromofluoromethane

0.02500 70-130980.0245 mg/LSurrogate: Toluene-d8

LCS Dup

10.00 2570-130124 10ug/L1,1-Dichloroethene 12.4

10.00 2570-130108 6ug/L1,2-Dichloroethane 10.8

10.00 2570-13094 3ug/L1,4-Dichlorobenzene 9.42

50.00 2570-130110 0.5ug/L2-Butanone 54.9

10.00 2570-130107 3ug/LBenzene 10.7

10.00 2570-13084 3ug/LCarbon Tetrachloride 8.37

10.00 2570-130100 2ug/LChlorobenzene 10.0

10.00 2570-130104 1ug/LChloroform 10.4

10.00 2570-130102 0.8ug/LTetrachloroethene 10.2

10.00 2570-13094 3ug/LTrichloroethene 9.43

10.00 2570-130124 7ug/LVinyl Chloride 12.4

0.02500 70-1301000.0249 mg/LSurrogate: 1,2-Dichloroethane-d4

0.02500 70-130860.0216 mg/LSurrogate: 4-Bromofluorobenzene

0.02500 70-130960.0240 mg/LSurrogate: Dibromofluoromethane

0.02500 70-130980.0245 mg/LSurrogate: Toluene-d8

1311/8270D Semi Volatile TCLP Compounds

Batch CK61836 - 3520C

Blank

0.05 mg/L2,4,5-Trichlorophenol ND

0.05 mg/L2,4,6-Trichlorophenol ND

0.05 mg/L2,4-Dinitrotoluene ND

0.05 mg/L2-Methylphenol ND

0.10 mg/L3+4-Methylphenol ND

0.05 mg/LHexachlorobenzene ND

0.05 mg/LHexachlorobutadiene ND

0.02 mg/LHexachloroethane ND

0.05 mg/LNitrobenzene ND

0.25 mg/LPentachlorophenol ND

0.50 mg/LPyridine ND

0.5000 30-130740.369 mg/LSurrogate: 1,2-Dichlorobenzene-d4

0.7500 15-1101140.857 mg/LSurrogate: 2,4,6-Tribromophenol S+

0.7500 15-110680.509 mg/LSurrogate: 2-Chlorophenol-d4

0.5000 30-130860.429 mg/LSurrogate: 2-Fluorobiphenyl

0.7500 15-110550.415 mg/LSurrogate: 2-Fluorophenol

0.5000 30-130860.431 mg/LSurrogate: Nitrobenzene-d5

0.7500 15-110750.565 mg/LSurrogate: Phenol-d6

0.5000 30-1301020.510 mg/LSurrogate: p-Terphenyl-d14

LCS

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 31 of 61

Page 40: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

1311/8270D Semi Volatile TCLP Compounds

Batch CK61836 - 3520C

0.01 0.1000 30-130108mg/L2,4,5-Trichlorophenol 0.11

0.01 0.1000 30-130100mg/L2,4,6-Trichlorophenol 0.10

0.01 0.1000 40-140102mg/L2,4-Dinitrotoluene 0.10

0.01 0.1000 30-13082mg/L2-Methylphenol 0.08

0.02 0.2000 30-13086mg/L3+4-Methylphenol 0.17

0.01 0.1000 40-14094mg/LHexachlorobenzene 0.09

0.01 0.1000 40-14080mg/LHexachlorobutadiene 0.08

0.005 0.1000 40-14075mg/LHexachloroethane 0.07

0.01 0.1000 40-14088mg/LNitrobenzene 0.09

0.05 0.1000 30-130122mg/LPentachlorophenol 0.12

0.10 0.1000 40-14071mg/LPyridine 0.07

0.1000 30-130750.0749 mg/LSurrogate: 1,2-Dichlorobenzene-d4

0.1500 15-1101210.181 mg/LSurrogate: 2,4,6-Tribromophenol S+

0.1500 15-110740.111 mg/LSurrogate: 2-Chlorophenol-d4

0.1000 30-130870.0874 mg/LSurrogate: 2-Fluorobiphenyl

0.1500 15-110650.0970 mg/LSurrogate: 2-Fluorophenol

0.1000 30-130870.0868 mg/LSurrogate: Nitrobenzene-d5

0.1500 15-110800.120 mg/LSurrogate: Phenol-d6

0.1000 30-1301000.0997 mg/LSurrogate: p-Terphenyl-d14

LCS Dup

0.01 0.1000 2030-130108 0.5mg/L2,4,5-Trichlorophenol 0.11

0.01 0.1000 2030-130100 0.1mg/L2,4,6-Trichlorophenol 0.10

0.01 0.1000 2040-140101 1mg/L2,4-Dinitrotoluene 0.10

0.01 0.1000 2030-13083 1mg/L2-Methylphenol 0.08

0.02 0.2000 2030-13082 5mg/L3+4-Methylphenol 0.16

0.01 0.1000 2040-14092 1mg/LHexachlorobenzene 0.09

0.01 0.1000 2040-14079 1mg/LHexachlorobutadiene 0.08

0.005 0.1000 2040-14074 1mg/LHexachloroethane 0.07

0.01 0.1000 2040-14086 2mg/LNitrobenzene 0.09

0.05 0.1000 2030-130121 1mg/LPentachlorophenol 0.12

0.10 0.1000 2040-14068 4mg/LPyridine 0.07

0.1000 30-130730.0729 mg/LSurrogate: 1,2-Dichlorobenzene-d4

0.1500 15-1101210.181 mg/LSurrogate: 2,4,6-Tribromophenol S+

0.1500 15-110770.115 mg/LSurrogate: 2-Chlorophenol-d4

0.1000 30-130860.0857 mg/LSurrogate: 2-Fluorobiphenyl

0.1500 15-110690.103 mg/LSurrogate: 2-Fluorophenol

0.1000 30-130860.0858 mg/LSurrogate: Nitrobenzene-d5

0.1500 15-110840.126 mg/LSurrogate: Phenol-d6

0.1000 30-1301000.0999 mg/LSurrogate: p-Terphenyl-d14

Total Metals Solid

Batch CK61712 - [CALC]

Blank

1.0 mg/kg wetChromium (III) ND

LCS

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 32 of 61

Page 41: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

Total Metals Solid

Batch CK61712 - [CALC]

3.4 mg/kg wetChromium (III) 81.3

LCS Dup

3.4 mg/kg wetChromium (III) 84.6

Batch CK62223 - [CALC]

Blank

0.9 mg/kg wetChromium (III) ND

LCS

0.9 mg/kg wetChromium (III) ND

LCS Dup

0.9 mg/kg wetChromium (III) ND

Reference

2.7 mg/kg wetChromium (III) ND

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

Blank

0.0050 mg/kg wet1,1,1,2-Tetrachloroethane ND

0.0050 mg/kg wet1,1,1-Trichloroethane ND

0.0050 mg/kg wet1,1,2,2-Tetrachloroethane ND

0.0050 mg/kg wet1,1,2-Trichloroethane ND

0.0050 mg/kg wet1,1-Dichloroethane ND

0.0050 mg/kg wet1,1-Dichloroethene ND

0.0050 mg/kg wet1,1-Dichloropropene ND

0.0050 mg/kg wet1,2,3-Trichlorobenzene ND

0.0050 mg/kg wet1,2,3-Trichloropropane ND

0.0050 mg/kg wet1,2,4-Trichlorobenzene ND

0.0050 mg/kg wet1,2,4-Trimethylbenzene ND

0.0050 mg/kg wet1,2-Dibromo-3-Chloropropane ND

0.0050 mg/kg wet1,2-Dibromoethane ND

0.0050 mg/kg wet1,2-Dichlorobenzene ND

0.0050 mg/kg wet1,2-Dichloroethane ND

0.0050 mg/kg wet1,2-Dichloropropane ND

0.0050 mg/kg wet1,3,5-Trimethylbenzene ND

0.0050 mg/kg wet1,3-Dichlorobenzene ND

0.0050 mg/kg wet1,3-Dichloropropane ND

0.0050 mg/kg wet1,4-Dichlorobenzene ND

0.100 mg/kg wet1,4-Dioxane ND

0.0050 mg/kg wet1-Chlorohexane ND

0.0050 mg/kg wet2,2-Dichloropropane ND

0.0500 mg/kg wet2-Butanone ND

0.0050 mg/kg wet2-Chlorotoluene ND

0.0500 mg/kg wet2-Hexanone ND

0.0050 mg/kg wet4-Chlorotoluene ND

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 33 of 61

Page 42: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

0.0050 mg/kg wet4-Isopropyltoluene ND

0.0500 mg/kg wet4-Methyl-2-Pentanone ND

0.0500 mg/kg wetAcetone ND

0.0050 mg/kg wetBenzene ND

0.0050 mg/kg wetBromobenzene ND

0.0050 mg/kg wetBromochloromethane ND

0.0050 mg/kg wetBromodichloromethane ND

0.0050 mg/kg wetBromoform ND

0.0100 mg/kg wetBromomethane ND

0.0050 mg/kg wetCarbon Disulfide ND

0.0050 mg/kg wetCarbon Tetrachloride ND

0.0050 mg/kg wetChlorobenzene ND

0.0100 mg/kg wetChloroethane ND

0.0050 mg/kg wetChloroform ND

0.0100 mg/kg wetChloromethane ND

0.0050 mg/kg wetcis-1,2-Dichloroethene ND

0.0050 mg/kg wetcis-1,3-Dichloropropene ND

0.0050 mg/kg wetDibromochloromethane ND

0.0050 mg/kg wetDibromomethane ND

0.0100 mg/kg wetDichlorodifluoromethane ND

0.0050 mg/kg wetDiethyl Ether ND

0.0050 mg/kg wetDi-isopropyl ether ND

0.0050 mg/kg wetEthyl tertiary-butyl ether ND

0.0050 mg/kg wetEthylbenzene ND

0.0050 mg/kg wetHexachlorobutadiene ND

0.0050 mg/kg wetIsopropylbenzene ND

0.0050 mg/kg wetMethyl tert-Butyl Ether ND

0.0250 mg/kg wetMethylene Chloride ND

0.0050 mg/kg wetNaphthalene ND

0.0050 mg/kg wetn-Butylbenzene ND

0.0050 mg/kg wetn-Propylbenzene ND

0.0050 mg/kg wetsec-Butylbenzene ND

0.0050 mg/kg wetStyrene ND

0.0050 mg/kg wettert-Butylbenzene ND

0.0050 mg/kg wetTertiary-amyl methyl ether ND

0.0050 mg/kg wetTetrachloroethene ND

0.0050 mg/kg wetTetrahydrofuran ND

0.0050 mg/kg wetToluene ND

0.0050 mg/kg wettrans-1,2-Dichloroethene ND

0.0050 mg/kg wettrans-1,3-Dichloropropene ND

0.0050 mg/kg wetTrichloroethene ND

0.0050 mg/kg wetTrichlorofluoromethane ND

0.0050 mg/kg wetVinyl Acetate ND

0.0100 mg/kg wetVinyl Chloride ND

0.0050 mg/kg wetXylene O ND

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 34 of 61

Page 43: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

0.0100 mg/kg wetXylene P,M ND

0.0100 mg/kg wetXylenes (Total) ND

0.05000 70-1301030.0517 mg/kg wetSurrogate: 1,2-Dichloroethane-d4

0.05000 70-1301010.0506 mg/kg wetSurrogate: 4-Bromofluorobenzene

0.05000 70-130950.0476 mg/kg wetSurrogate: Dibromofluoromethane

0.05000 70-1301030.0515 mg/kg wetSurrogate: Toluene-d8

LCS

0.0050 0.05000 70-13099mg/kg wet1,1,1,2-Tetrachloroethane 0.0495

0.0050 0.05000 70-130108mg/kg wet1,1,1-Trichloroethane 0.0542

0.0050 0.05000 70-130104mg/kg wet1,1,2,2-Tetrachloroethane 0.0518

0.0050 0.05000 70-13091mg/kg wet1,1,2-Trichloroethane 0.0455

0.0050 0.05000 70-130106mg/kg wet1,1-Dichloroethane 0.0531

0.0050 0.05000 70-130113mg/kg wet1,1-Dichloroethene 0.0565

0.0050 0.05000 70-130112mg/kg wet1,1-Dichloropropene 0.0561

0.0050 0.05000 70-130104mg/kg wet1,2,3-Trichlorobenzene 0.0522

0.0050 0.05000 70-13091mg/kg wet1,2,3-Trichloropropane 0.0457

0.0050 0.05000 70-130106mg/kg wet1,2,4-Trichlorobenzene 0.0532

0.0050 0.05000 70-130109mg/kg wet1,2,4-Trimethylbenzene 0.0547

0.0050 0.05000 70-13098mg/kg wet1,2-Dibromo-3-Chloropropane 0.0488

0.0050 0.05000 70-13095mg/kg wet1,2-Dibromoethane 0.0474

0.0050 0.05000 70-130100mg/kg wet1,2-Dichlorobenzene 0.0499

0.0050 0.05000 70-130109mg/kg wet1,2-Dichloroethane 0.0544

0.0050 0.05000 70-130100mg/kg wet1,2-Dichloropropane 0.0498

0.0050 0.05000 70-130111mg/kg wet1,3,5-Trimethylbenzene 0.0554

0.0050 0.05000 70-130100mg/kg wet1,3-Dichlorobenzene 0.0502

0.0050 0.05000 70-130107mg/kg wet1,3-Dichloropropane 0.0535

0.0050 0.05000 70-130101mg/kg wet1,4-Dichlorobenzene 0.0503

0.100 1.000 70-13082mg/kg wet1,4-Dioxane 0.820

0.0050 0.05000 70-130110mg/kg wet1-Chlorohexane 0.0552

0.0050 0.05000 70-130104mg/kg wet2,2-Dichloropropane 0.0522

0.0500 0.2500 70-13095mg/kg wet2-Butanone 0.237

0.0050 0.05000 70-130110mg/kg wet2-Chlorotoluene 0.0548

0.0500 0.2500 70-13089mg/kg wet2-Hexanone 0.223

0.0050 0.05000 70-130106mg/kg wet4-Chlorotoluene 0.0529

0.0050 0.05000 70-130112mg/kg wet4-Isopropyltoluene 0.0559

0.0500 0.2500 70-13084mg/kg wet4-Methyl-2-Pentanone 0.210

0.0500 0.2500 70-13098mg/kg wetAcetone 0.245

0.0050 0.05000 70-130104mg/kg wetBenzene 0.0521

0.0050 0.05000 70-130103mg/kg wetBromobenzene 0.0516

0.0050 0.05000 70-130102mg/kg wetBromochloromethane 0.0511

0.0050 0.05000 70-13097mg/kg wetBromodichloromethane 0.0487

0.0050 0.05000 70-13092mg/kg wetBromoform 0.0461

0.0100 0.05000 70-130104mg/kg wetBromomethane 0.0520

0.0050 0.05000 70-130108mg/kg wetCarbon Disulfide 0.0538

0.0050 0.05000 70-130109mg/kg wetCarbon Tetrachloride 0.0543

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 35 of 61

Page 44: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

0.0050 0.05000 70-130101mg/kg wetChlorobenzene 0.0505

0.0100 0.05000 70-130105mg/kg wetChloroethane 0.0527

0.0050 0.05000 70-130108mg/kg wetChloroform 0.0542

0.0100 0.05000 70-130116mg/kg wetChloromethane 0.0581

0.0050 0.05000 70-130104mg/kg wetcis-1,2-Dichloroethene 0.0521

0.0050 0.05000 70-13097mg/kg wetcis-1,3-Dichloropropene 0.0486

0.0050 0.05000 70-13096mg/kg wetDibromochloromethane 0.0482

0.0050 0.05000 70-130103mg/kg wetDibromomethane 0.0515

0.0100 0.05000 70-130108mg/kg wetDichlorodifluoromethane 0.0541

0.0050 0.05000 70-130104mg/kg wetDiethyl Ether 0.0522

0.0050 0.05000 70-130105mg/kg wetDi-isopropyl ether 0.0523

0.0050 0.05000 70-130102mg/kg wetEthyl tertiary-butyl ether 0.0510

0.0050 0.05000 70-130111mg/kg wetEthylbenzene 0.0554

0.0050 0.05000 70-130108mg/kg wetHexachlorobutadiene 0.0538

0.0050 0.05000 70-13092mg/kg wetIsopropylbenzene 0.0461

0.0050 0.05000 70-130102mg/kg wetMethyl tert-Butyl Ether 0.0508

0.0250 0.05000 70-130108mg/kg wetMethylene Chloride 0.0538

0.0050 0.05000 70-13090mg/kg wetNaphthalene 0.0451

0.0050 0.05000 70-130115mg/kg wetn-Butylbenzene 0.0574

0.0050 0.05000 70-130112mg/kg wetn-Propylbenzene 0.0560

0.0050 0.05000 70-130108mg/kg wetsec-Butylbenzene 0.0538

0.0050 0.05000 70-13095mg/kg wetStyrene 0.0475

0.0050 0.05000 70-130109mg/kg wettert-Butylbenzene 0.0545

0.0050 0.05000 70-13088mg/kg wetTertiary-amyl methyl ether 0.0438

0.0050 0.05000 70-130104mg/kg wetTetrachloroethene 0.0520

0.0050 0.05000 70-13093mg/kg wetTetrahydrofuran 0.0464

0.0050 0.05000 70-130104mg/kg wetToluene 0.0521

0.0050 0.05000 70-130108mg/kg wettrans-1,2-Dichloroethene 0.0541

0.0050 0.05000 70-13091mg/kg wettrans-1,3-Dichloropropene 0.0454

0.0050 0.05000 70-130107mg/kg wetTrichloroethene 0.0536

0.0050 0.05000 70-130103mg/kg wetTrichlorofluoromethane 0.0513

0.0050 0.05000 70-13091mg/kg wetVinyl Acetate 0.0456

0.0100 0.05000 70-130123mg/kg wetVinyl Chloride 0.0613

0.0050 0.05000 70-130105mg/kg wetXylene O 0.0527

0.0100 0.1000 70-130106mg/kg wetXylene P,M 0.106

0.0100 mg/kg wetXylenes (Total) 0.159

0.05000 70-130980.0491 mg/kg wetSurrogate: 1,2-Dichloroethane-d4

0.05000 70-130930.0467 mg/kg wetSurrogate: 4-Bromofluorobenzene

0.05000 70-130910.0455 mg/kg wetSurrogate: Dibromofluoromethane

0.05000 70-130950.0475 mg/kg wetSurrogate: Toluene-d8

LCS Dup

0.0050 0.05000 2570-130102 3mg/kg wet1,1,1,2-Tetrachloroethane 0.0508

0.0050 0.05000 2570-130112 3mg/kg wet1,1,1-Trichloroethane 0.0559

0.0050 0.05000 2570-130112 8mg/kg wet1,1,2,2-Tetrachloroethane 0.0562

0.0050 0.05000 2570-13097 6mg/kg wet1,1,2-Trichloroethane 0.0485

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 36 of 61

Page 45: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

0.0050 0.05000 2570-130111 5mg/kg wet1,1-Dichloroethane 0.0556

0.0050 0.05000 2570-130118 5mg/kg wet1,1-Dichloroethene 0.0592

0.0050 0.05000 2570-130118 5mg/kg wet1,1-Dichloropropene 0.0590

0.0050 0.05000 2570-130115 9mg/kg wet1,2,3-Trichlorobenzene 0.0573

0.0050 0.05000 2570-130100 9mg/kg wet1,2,3-Trichloropropane 0.0502

0.0050 0.05000 2570-130115 8mg/kg wet1,2,4-Trichlorobenzene 0.0575

0.0050 0.05000 2570-130114 4mg/kg wet1,2,4-Trimethylbenzene 0.0569

0.0050 0.05000 2570-130110 12mg/kg wet1,2-Dibromo-3-Chloropropane 0.0550

0.0050 0.05000 2570-13098 4mg/kg wet1,2-Dibromoethane 0.0491

0.0050 0.05000 2570-130107 7mg/kg wet1,2-Dichlorobenzene 0.0534

0.0050 0.05000 2570-130115 6mg/kg wet1,2-Dichloroethane 0.0577

0.0050 0.05000 2570-130105 6mg/kg wet1,2-Dichloropropane 0.0527

0.0050 0.05000 2570-130116 4mg/kg wet1,3,5-Trimethylbenzene 0.0578

0.0050 0.05000 2570-130106 5mg/kg wet1,3-Dichlorobenzene 0.0530

0.0050 0.05000 2570-130110 3mg/kg wet1,3-Dichloropropane 0.0550

0.0050 0.05000 2570-130107 7mg/kg wet1,4-Dichlorobenzene 0.0537

0.100 1.000 2070-13097 17mg/kg wet1,4-Dioxane 0.969

0.0050 0.05000 2570-130108 2mg/kg wet1-Chlorohexane 0.0540

0.0050 0.05000 2570-130107 3mg/kg wet2,2-Dichloropropane 0.0535

0.0500 0.2500 2570-130107 12mg/kg wet2-Butanone 0.267

0.0050 0.05000 2570-130112 2mg/kg wet2-Chlorotoluene 0.0561

0.0500 0.2500 2570-130101 13mg/kg wet2-Hexanone 0.253

0.0050 0.05000 2570-130111 5mg/kg wet4-Chlorotoluene 0.0556

0.0050 0.05000 2570-130115 3mg/kg wet4-Isopropyltoluene 0.0577

0.0500 0.2500 2570-13096 13mg/kg wet4-Methyl-2-Pentanone 0.239

0.0500 0.2500 2570-130128 26mg/kg wetAcetone 0.320 D+

0.0050 0.05000 2570-130110 6mg/kg wetBenzene 0.0551

0.0050 0.05000 2570-130110 6mg/kg wetBromobenzene 0.0550

0.0050 0.05000 2570-130109 7mg/kg wetBromochloromethane 0.0547

0.0050 0.05000 2570-130103 5mg/kg wetBromodichloromethane 0.0514

0.0050 0.05000 2570-13098 6mg/kg wetBromoform 0.0489

0.0100 0.05000 2570-130106 2mg/kg wetBromomethane 0.0532

0.0050 0.05000 2570-130112 4mg/kg wetCarbon Disulfide 0.0562

0.0050 0.05000 2570-130114 5mg/kg wetCarbon Tetrachloride 0.0570

0.0050 0.05000 2570-130103 2mg/kg wetChlorobenzene 0.0515

0.0100 0.05000 2570-130112 6mg/kg wetChloroethane 0.0558

0.0050 0.05000 2570-130113 5mg/kg wetChloroform 0.0567

0.0100 0.05000 2570-130122 5mg/kg wetChloromethane 0.0612

0.0050 0.05000 2570-130109 4mg/kg wetcis-1,2-Dichloroethene 0.0544

0.0050 0.05000 2570-130104 6mg/kg wetcis-1,3-Dichloropropene 0.0519

0.0050 0.05000 2570-130100 4mg/kg wetDibromochloromethane 0.0501

0.0050 0.05000 2570-130111 8mg/kg wetDibromomethane 0.0557

0.0100 0.05000 2570-130114 5mg/kg wetDichlorodifluoromethane 0.0569

0.0050 0.05000 2570-130110 5mg/kg wetDiethyl Ether 0.0549

0.0050 0.05000 2570-130112 7mg/kg wetDi-isopropyl ether 0.0558

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 37 of 61

Page 46: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

5035/8260B Volatile Organic Compounds / Low Level

Batch CK61825 - 5035

0.0050 0.05000 2570-130110 7mg/kg wetEthyl tertiary-butyl ether 0.0548

0.0050 0.05000 2570-130111 0.3mg/kg wetEthylbenzene 0.0555

0.0050 0.05000 2570-130112 4mg/kg wetHexachlorobutadiene 0.0559

0.0050 0.05000 2570-13095 3mg/kg wetIsopropylbenzene 0.0476

0.0050 0.05000 2570-130109 7mg/kg wetMethyl tert-Butyl Ether 0.0546

0.0250 0.05000 2570-130115 7mg/kg wetMethylene Chloride 0.0575

0.0050 0.05000 2570-130111 21mg/kg wetNaphthalene 0.0555

0.0050 0.05000 2570-130122 6mg/kg wetn-Butylbenzene 0.0610

0.0050 0.05000 2570-130116 4mg/kg wetn-Propylbenzene 0.0581

0.0050 0.05000 2570-130113 5mg/kg wetsec-Butylbenzene 0.0566

0.0050 0.05000 2570-13097 2mg/kg wetStyrene 0.0487

0.0050 0.05000 2570-130113 3mg/kg wettert-Butylbenzene 0.0563

0.0050 0.05000 2570-13094 7mg/kg wetTertiary-amyl methyl ether 0.0470

0.0050 0.05000 2570-130107 3mg/kg wetTetrachloroethene 0.0534

0.0050 0.05000 2570-130104 12mg/kg wetTetrahydrofuran 0.0522

0.0050 0.05000 2570-130109 4mg/kg wetToluene 0.0545

0.0050 0.05000 2570-130112 4mg/kg wettrans-1,2-Dichloroethene 0.0561

0.0050 0.05000 2570-13097 7mg/kg wettrans-1,3-Dichloropropene 0.0487

0.0050 0.05000 2570-130111 4mg/kg wetTrichloroethene 0.0555

0.0050 0.05000 2570-130106 3mg/kg wetTrichlorofluoromethane 0.0530

0.0050 0.05000 2570-13099 9mg/kg wetVinyl Acetate 0.0497

0.0100 0.05000 2570-130127 4mg/kg wetVinyl Chloride 0.0636

0.0050 0.05000 2570-130107 1mg/kg wetXylene O 0.0533

0.0100 0.1000 2570-130108 1mg/kg wetXylene P,M 0.108

0.0100 mg/kg wetXylenes (Total) 0.161

0.05000 70-1301000.0501 mg/kg wetSurrogate: 1,2-Dichloroethane-d4

0.05000 70-130920.0461 mg/kg wetSurrogate: 4-Bromofluorobenzene

0.05000 70-130930.0465 mg/kg wetSurrogate: Dibromofluoromethane

0.05000 70-130930.0464 mg/kg wetSurrogate: Toluene-d8

8081B Organochlorine Pesticides

Batch CK61609 - 3546

Blank

0.0300 mg/kg wetChlordane (Total) ND

0.0300 mg/kg wetChlordane (Total) [2C] ND

0.0025 mg/kg wetDieldrin ND

0.0025 mg/kg wetDieldrin [2C] ND

0.01250 30-150970.0122 mg/kg wetSurrogate: Decachlorobiphenyl

0.01250 30-150980.0123 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.01250 30-1501030.0129 mg/kg wetSurrogate: Tetrachloro-m-xylene

0.01250 30-1501060.0132 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

LCS

0.0025 0.01250 40-140110mg/kg wetDieldrin 0.0138

0.0025 0.01250 40-140113mg/kg wetDieldrin [2C] 0.0141

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 38 of 61

Page 47: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8081B Organochlorine Pesticides

Batch CK61609 - 3546

0.01250 30-1501010.0127 mg/kg wetSurrogate: Decachlorobiphenyl

0.01250 30-1501010.0127 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.01250 30-1501040.0130 mg/kg wetSurrogate: Tetrachloro-m-xylene

0.01250 30-1501060.0132 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

LCS Dup

0.0025 0.01250 3040-140107 3mg/kg wetDieldrin 0.0133

0.0025 0.01250 3040-140110 3mg/kg wetDieldrin [2C] 0.0138

0.01250 30-150990.0124 mg/kg wetSurrogate: Decachlorobiphenyl

0.01250 30-1501000.0124 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.01250 30-1501030.0129 mg/kg wetSurrogate: Tetrachloro-m-xylene

0.01250 30-1501040.0130 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

8082A Polychlorinated Biphenyls (PCB)

Batch CK61607 - 3540C

Blank

0.0500 mg/kg wetAroclor 1016 ND

0.0500 mg/kg wetAroclor 1221 ND

0.0500 mg/kg wetAroclor 1232 ND

0.0500 mg/kg wetAroclor 1242 ND

0.0500 mg/kg wetAroclor 1248 ND

0.0500 mg/kg wetAroclor 1254 ND

0.0500 mg/kg wetAroclor 1260 ND

0.0500 mg/kg wetAroclor 1262 ND

0.0500 mg/kg wetAroclor 1268 ND

0.02500 30-1501080.0270 mg/kg wetSurrogate: Decachlorobiphenyl

0.02500 30-150910.0228 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.02500 30-150800.0199 mg/kg wetSurrogate: Tetrachloro-m-xylene

0.02500 30-150790.0198 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

LCS

0.0500 0.5000 40-14086mg/kg wetAroclor 1016 0.432

0.0500 0.5000 40-14086mg/kg wetAroclor 1260 0.430

0.02500 30-150990.0248 mg/kg wetSurrogate: Decachlorobiphenyl

0.02500 30-150950.0237 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.02500 30-150850.0212 mg/kg wetSurrogate: Tetrachloro-m-xylene

0.02500 30-150800.0200 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

LCS Dup

0.0500 0.5000 3040-14088 2mg/kg wetAroclor 1016 0.442

0.0500 0.5000 3040-14087 1mg/kg wetAroclor 1260 0.436

0.02500 30-150980.0245 mg/kg wetSurrogate: Decachlorobiphenyl

0.02500 30-150950.0237 mg/kg wetSurrogate: Decachlorobiphenyl [2C]

0.02500 30-150860.0215 mg/kg wetSurrogate: Tetrachloro-m-xylene

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 39 of 61

Page 48: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8082A Polychlorinated Biphenyls (PCB)

Batch CK61607 - 3540C

0.02500 30-150810.0202 mg/kg wetSurrogate: Tetrachloro-m-xylene [2C]

8100M Total Petroleum Hydrocarbons

Batch CK61611 - 3546

Blank

0.2 mg/kg wetDecane (C10) ND

0.2 mg/kg wetDocosane (C22) ND

0.2 mg/kg wetDodecane (C12) ND

0.2 mg/kg wetEicosane (C20) ND

0.2 mg/kg wetHexacosane (C26) ND

0.2 mg/kg wetHexadecane (C16) ND

0.2 mg/kg wetNonadecane (C19) ND

0.2 mg/kg wetNonane (C9) ND

0.2 mg/kg wetOctacosane (C28) ND

0.2 mg/kg wetOctadecane (C18) ND

0.2 mg/kg wetTetracosane (C24) ND

0.2 mg/kg wetTetradecane (C14) ND

37.5 mg/kg wetTotal Petroleum Hydrocarbons ND

0.2 mg/kg wetTriacontane (C30) ND

5.000 40-140884.40 mg/kg wetSurrogate: O-Terphenyl

LCS

0.2 2.500 40-14068mg/kg wetDecane (C10) 1.7

0.2 2.500 40-14078mg/kg wetDocosane (C22) 2.0

0.2 2.500 40-14067mg/kg wetDodecane (C12) 1.7

0.2 2.500 40-14077mg/kg wetEicosane (C20) 1.9

0.2 2.500 40-14081mg/kg wetHexacosane (C26) 2.0

0.2 2.500 40-14077mg/kg wetHexadecane (C16) 1.9

0.2 2.500 40-14078mg/kg wetNonadecane (C19) 2.0

0.2 2.500 30-14060mg/kg wetNonane (C9) 1.5

0.2 2.500 40-14084mg/kg wetOctacosane (C28) 2.1

0.2 2.500 40-14075mg/kg wetOctadecane (C18) 1.9

0.2 2.500 40-14080mg/kg wetTetracosane (C24) 2.0

0.2 2.500 40-14074mg/kg wetTetradecane (C14) 1.8

37.5 35.00 40-14074mg/kg wetTotal Petroleum Hydrocarbons 25.9

0.2 2.500 40-14087mg/kg wetTriacontane (C30) 2.2

5.000 40-140793.97 mg/kg wetSurrogate: O-Terphenyl

LCS Dup

0.2 2.500 2540-14079 15mg/kg wetDecane (C10) 2.0

0.2 2.500 2540-14089 13mg/kg wetDocosane (C22) 2.2

0.2 2.500 2540-14079 16mg/kg wetDodecane (C12) 2.0

0.2 2.500 2540-14087 12mg/kg wetEicosane (C20) 2.2

0.2 2.500 2540-14092 13mg/kg wetHexacosane (C26) 2.3

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 40 of 61

Page 49: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8100M Total Petroleum Hydrocarbons

Batch CK61611 - 3546

0.2 2.500 2540-14085 9mg/kg wetHexadecane (C16) 2.1

0.2 2.500 2540-14088 12mg/kg wetNonadecane (C19) 2.2

0.2 2.500 2530-14068 13mg/kg wetNonane (C9) 1.7

0.2 2.500 2540-14094 12mg/kg wetOctacosane (C28) 2.4

0.2 2.500 2540-14085 12mg/kg wetOctadecane (C18) 2.1

0.2 2.500 2540-14090 12mg/kg wetTetracosane (C24) 2.2

0.2 2.500 2540-14085 14mg/kg wetTetradecane (C14) 2.1

37.5 35.00 2540-14084 13mg/kg wetTotal Petroleum Hydrocarbons 29.4

0.2 2.500 2540-14098 12mg/kg wetTriacontane (C30) 2.4

5.000 40-140884.38 mg/kg wetSurrogate: O-Terphenyl

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

Blank

0.333 mg/kg wet1,1-Biphenyl ND

0.333 mg/kg wet1,2,4-Trichlorobenzene ND

0.333 mg/kg wet1,2-Dichlorobenzene ND

0.333 mg/kg wet1,3-Dichlorobenzene ND

0.333 mg/kg wet1,4-Dichlorobenzene ND

1.67 mg/kg wet2,3,4,6-Tetrachlorophenol ND

0.333 mg/kg wet2,4,5-Trichlorophenol ND

0.333 mg/kg wet2,4,6-Trichlorophenol ND

0.333 mg/kg wet2,4-Dichlorophenol ND

0.333 mg/kg wet2,4-Dimethylphenol ND

1.67 mg/kg wet2,4-Dinitrophenol ND

0.333 mg/kg wet2,4-Dinitrotoluene ND

0.333 mg/kg wet2,6-Dinitrotoluene ND

0.333 mg/kg wet2-Chloronaphthalene ND

0.333 mg/kg wet2-Chlorophenol ND

0.333 mg/kg wet2-Methylnaphthalene ND

0.333 mg/kg wet2-Methylphenol ND

0.333 mg/kg wet2-Nitroaniline ND

0.333 mg/kg wet2-Nitrophenol ND

0.667 mg/kg wet3,3´-Dichlorobenzidine ND

0.667 mg/kg wet3+4-Methylphenol ND

0.333 mg/kg wet3-Nitroaniline ND

1.67 mg/kg wet4,6-Dinitro-2-Methylphenol ND

0.333 mg/kg wet4-Bromophenyl-phenylether ND

0.333 mg/kg wet4-Chloro-3-Methylphenol ND

0.667 mg/kg wet4-Chloroaniline ND

0.333 mg/kg wet4-Chloro-phenyl-phenyl ether ND

0.333 mg/kg wet4-Nitroaniline ND

1.67 mg/kg wet4-Nitrophenol ND

0.333 mg/kg wetAcenaphthene ND

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 41 of 61

Page 50: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

0.333 mg/kg wetAcenaphthylene ND

0.667 mg/kg wetAcetophenone ND

0.667 mg/kg wetAniline ND

0.333 mg/kg wetAnthracene ND

0.333 mg/kg wetAzobenzene ND

0.333 mg/kg wetBenzo(a)anthracene ND

0.167 mg/kg wetBenzo(a)pyrene ND

0.333 mg/kg wetBenzo(b)fluoranthene ND

0.333 mg/kg wetBenzo(g,h,i)perylene ND

0.333 mg/kg wetBenzo(k)fluoranthene ND

1.67 mg/kg wetBenzoic Acid ND

0.333 mg/kg wetBenzyl Alcohol ND

0.333 mg/kg wetbis(2-Chloroethoxy)methane ND

0.333 mg/kg wetbis(2-Chloroethyl)ether ND

0.333 mg/kg wetbis(2-chloroisopropyl)Ether ND

0.333 mg/kg wetbis(2-Ethylhexyl)phthalate ND

0.333 mg/kg wetButylbenzylphthalate ND

0.333 mg/kg wetCarbazole ND

0.167 mg/kg wetChrysene ND

0.167 mg/kg wetDibenzo(a,h)Anthracene ND

0.333 mg/kg wetDibenzofuran ND

0.333 mg/kg wetDiethylphthalate ND

0.333 mg/kg wetDimethylphthalate ND

0.333 mg/kg wetDi-n-butylphthalate ND

0.333 mg/kg wetDi-n-octylphthalate ND

0.333 mg/kg wetFluoranthene ND

0.333 mg/kg wetFluorene ND

0.167 mg/kg wetHexachlorobenzene ND

0.333 mg/kg wetHexachlorobutadiene ND

1.67 mg/kg wetHexachlorocyclopentadiene ND

0.333 mg/kg wetHexachloroethane ND

0.333 mg/kg wetIndeno(1,2,3-cd)Pyrene ND

0.333 mg/kg wetIsophorone ND

0.333 mg/kg wetNaphthalene ND

0.333 mg/kg wetNitrobenzene ND

0.333 mg/kg wetN-Nitrosodimethylamine ND

0.333 mg/kg wetN-Nitroso-Di-n-Propylamine ND

0.333 mg/kg wetN-nitrosodiphenylamine ND

1.67 mg/kg wetPentachlorophenol ND

0.333 mg/kg wetPhenanthrene ND

0.333 mg/kg wetPhenol ND

0.333 mg/kg wetPyrene ND

1.67 mg/kg wetPyridine ND

3.333 30-130702.33 mg/kg wetSurrogate: 1,2-Dichlorobenzene-d4

5.000 30-130733.65 mg/kg wetSurrogate: 2,4,6-Tribromophenol

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 42 of 61

Page 51: Tim O’Connor & Company, LLCTim O’Connor & Company, LLC environmental consultation toc & co\projects\001\quarterly reporting\2017 Q2 Tim O’Connor & Company, LLC August 11, 2017

Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

5.000 30-130733.64 mg/kg wetSurrogate: 2-Chlorophenol-d4

3.333 30-130632.09 mg/kg wetSurrogate: 2-Fluorobiphenyl

5.000 30-130723.59 mg/kg wetSurrogate: 2-Fluorophenol

3.333 30-130732.43 mg/kg wetSurrogate: Nitrobenzene-d5

5.000 30-130753.75 mg/kg wetSurrogate: Phenol-d6

3.333 30-130933.09 mg/kg wetSurrogate: p-Terphenyl-d14

LCS

0.333 3.333 40-14070mg/kg wet1,1-Biphenyl 2.35

0.333 3.333 40-14062mg/kg wet1,2,4-Trichlorobenzene 2.07

0.333 3.333 40-14060mg/kg wet1,2-Dichlorobenzene 2.00

0.333 3.333 40-14061mg/kg wet1,3-Dichlorobenzene 2.03

0.333 3.333 40-14060mg/kg wet1,4-Dichlorobenzene 1.99

1.67 3.333 30-13073mg/kg wet2,3,4,6-Tetrachlorophenol 2.43

0.333 3.333 30-13089mg/kg wet2,4,5-Trichlorophenol 2.96

0.333 3.333 30-13083mg/kg wet2,4,6-Trichlorophenol 2.76

0.333 3.333 30-13068mg/kg wet2,4-Dichlorophenol 2.27

0.333 3.333 30-13073mg/kg wet2,4-Dimethylphenol 2.42

1.67 3.333 30-13059mg/kg wet2,4-Dinitrophenol 1.97

0.333 3.333 40-14082mg/kg wet2,4-Dinitrotoluene 2.75

0.333 3.333 40-14081mg/kg wet2,6-Dinitrotoluene 2.71

0.333 3.333 40-14064mg/kg wet2-Chloronaphthalene 2.14

0.333 3.333 30-13060mg/kg wet2-Chlorophenol 1.99

0.333 3.333 40-14076mg/kg wet2-Methylnaphthalene 2.52

0.333 3.333 30-13063mg/kg wet2-Methylphenol 2.09

0.333 3.333 40-14076mg/kg wet2-Nitroaniline 2.53

0.333 3.333 30-13061mg/kg wet2-Nitrophenol 2.04

0.667 3.333 40-14074mg/kg wet3,3´-Dichlorobenzidine 2.47

0.667 6.667 30-13064mg/kg wet3+4-Methylphenol 4.25

0.333 3.333 40-14084mg/kg wet3-Nitroaniline 2.81

1.67 3.333 30-13073mg/kg wet4,6-Dinitro-2-Methylphenol 2.44

0.333 3.333 40-14081mg/kg wet4-Bromophenyl-phenylether 2.71

0.333 3.333 30-13093mg/kg wet4-Chloro-3-Methylphenol 3.11

0.667 3.333 40-14066mg/kg wet4-Chloroaniline 2.20

0.333 3.333 40-14076mg/kg wet4-Chloro-phenyl-phenyl ether 2.53

0.333 3.333 40-14088mg/kg wet4-Nitroaniline 2.93

1.67 3.333 30-13075mg/kg wet4-Nitrophenol 2.50

0.333 3.333 40-14072mg/kg wetAcenaphthene 2.42

0.333 3.333 40-14073mg/kg wetAcenaphthylene 2.43

0.667 3.333 40-14062mg/kg wetAcetophenone 2.07

0.667 3.333 40-14055mg/kg wetAniline 1.83

0.333 3.333 40-14085mg/kg wetAnthracene 2.82

0.333 3.333 40-14088mg/kg wetAzobenzene 2.93

0.333 3.333 40-14083mg/kg wetBenzo(a)anthracene 2.78

0.167 3.333 40-14088mg/kg wetBenzo(a)pyrene 2.94

0.333 3.333 40-14087mg/kg wetBenzo(b)fluoranthene 2.89

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

0.333 3.333 40-14099mg/kg wetBenzo(g,h,i)perylene 3.31

0.333 3.333 40-14086mg/kg wetBenzo(k)fluoranthene 2.87

1.67 3.333 40-14064mg/kg wetBenzoic Acid 2.14

0.333 3.333 40-14076mg/kg wetBenzyl Alcohol 2.53

0.333 3.333 40-14065mg/kg wetbis(2-Chloroethoxy)methane 2.15

0.333 3.333 40-14059mg/kg wetbis(2-Chloroethyl)ether 1.97

0.333 3.333 40-14062mg/kg wetbis(2-chloroisopropyl)Ether 2.08

0.333 3.333 40-14086mg/kg wetbis(2-Ethylhexyl)phthalate 2.85

0.333 3.333 40-14085mg/kg wetButylbenzylphthalate 2.84

0.333 3.333 40-14074mg/kg wetCarbazole 2.48

0.167 3.333 40-14084mg/kg wetChrysene 2.81

0.167 3.333 40-14098mg/kg wetDibenzo(a,h)Anthracene 3.28

0.333 3.333 40-14073mg/kg wetDibenzofuran 2.44

0.333 3.333 40-14087mg/kg wetDiethylphthalate 2.90

0.333 3.333 40-14082mg/kg wetDimethylphthalate 2.74

0.333 3.333 40-14077mg/kg wetDi-n-butylphthalate 2.56

0.333 3.333 40-14092mg/kg wetDi-n-octylphthalate 3.05

0.333 3.333 40-14076mg/kg wetFluoranthene 2.52

0.333 3.333 40-14078mg/kg wetFluorene 2.60

0.167 3.333 40-14083mg/kg wetHexachlorobenzene 2.77

0.333 3.333 40-14063mg/kg wetHexachlorobutadiene 2.09

1.67 3.333 40-14063mg/kg wetHexachlorocyclopentadiene 2.10

0.333 3.333 40-14061mg/kg wetHexachloroethane 2.02

0.333 3.333 40-14097mg/kg wetIndeno(1,2,3-cd)Pyrene 3.24

0.333 3.333 40-14065mg/kg wetIsophorone 2.16

0.333 3.333 40-14061mg/kg wetNaphthalene 2.02

0.333 3.333 40-14065mg/kg wetNitrobenzene 2.15

0.333 3.333 40-14054mg/kg wetN-Nitrosodimethylamine 1.79

0.333 3.333 40-14064mg/kg wetN-Nitroso-Di-n-Propylamine 2.15

0.333 3.333 40-14085mg/kg wetN-nitrosodiphenylamine 2.82

1.67 3.333 30-13090mg/kg wetPentachlorophenol 2.99

0.333 3.333 40-14084mg/kg wetPhenanthrene 2.81

0.333 3.333 30-13058mg/kg wetPhenol 1.94

0.333 3.333 40-14086mg/kg wetPyrene 2.86

1.67 3.333 40-14048mg/kg wetPyridine 1.59

3.333 30-130612.02 mg/kg wetSurrogate: 1,2-Dichlorobenzene-d4

5.000 30-130844.20 mg/kg wetSurrogate: 2,4,6-Tribromophenol

5.000 30-130633.14 mg/kg wetSurrogate: 2-Chlorophenol-d4

3.333 30-130702.33 mg/kg wetSurrogate: 2-Fluorobiphenyl

5.000 30-130603.02 mg/kg wetSurrogate: 2-Fluorophenol

3.333 30-130652.17 mg/kg wetSurrogate: Nitrobenzene-d5

5.000 30-130643.20 mg/kg wetSurrogate: Phenol-d6

3.333 30-130872.89 mg/kg wetSurrogate: p-Terphenyl-d14

LCS Dup

0.333 3.333 3040-14086 20mg/kg wet1,1-Biphenyl 2.88

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 44 of 61

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

0.333 3.333 3040-14081 26mg/kg wet1,2,4-Trichlorobenzene 2.70

0.333 3.333 3040-14076 23mg/kg wet1,2-Dichlorobenzene 2.52

0.333 3.333 3040-14077 24mg/kg wet1,3-Dichlorobenzene 2.57

0.333 3.333 3040-14075 22mg/kg wet1,4-Dichlorobenzene 2.49

1.67 3.333 3030-13083 13mg/kg wet2,3,4,6-Tetrachlorophenol 2.76

0.333 3.333 3030-130101 13mg/kg wet2,4,5-Trichlorophenol 3.37

0.333 3.333 3030-13098 17mg/kg wet2,4,6-Trichlorophenol 3.27

0.333 3.333 3030-13088 25mg/kg wet2,4-Dichlorophenol 2.93

0.333 3.333 3030-13092 24mg/kg wet2,4-Dimethylphenol 3.07

1.67 3.333 3030-13062 5mg/kg wet2,4-Dinitrophenol 2.08

0.333 3.333 3040-14093 12mg/kg wet2,4-Dinitrotoluene 3.09

0.333 3.333 3040-14089 9mg/kg wet2,6-Dinitrotoluene 2.98

0.333 3.333 3040-14079 21mg/kg wet2-Chloronaphthalene 2.63

0.333 3.333 3030-13075 23mg/kg wet2-Chlorophenol 2.51

0.333 3.333 3040-14081 7mg/kg wet2-Methylnaphthalene 2.69

0.333 3.333 3030-13079 23mg/kg wet2-Methylphenol 2.64

0.333 3.333 3040-14082 7mg/kg wet2-Nitroaniline 2.72

0.333 3.333 3030-13079 25mg/kg wet2-Nitrophenol 2.63

0.667 3.333 3040-14081 9mg/kg wet3,3´-Dichlorobenzidine 2.69

0.667 6.667 3030-13071 10mg/kg wet3+4-Methylphenol 4.70

0.333 3.333 3040-14093 10mg/kg wet3-Nitroaniline 3.10

1.67 3.333 3030-13068 8mg/kg wet4,6-Dinitro-2-Methylphenol 2.26

0.333 3.333 3040-14091 11mg/kg wet4-Bromophenyl-phenylether 3.03

0.333 3.333 3030-13091 3mg/kg wet4-Chloro-3-Methylphenol 3.02

0.667 3.333 3040-14085 26mg/kg wet4-Chloroaniline 2.85

0.333 3.333 3040-14089 15mg/kg wet4-Chloro-phenyl-phenyl ether 2.95

0.333 3.333 3040-14079 11mg/kg wet4-Nitroaniline 2.63

1.67 3.333 3030-13078 4mg/kg wet4-Nitrophenol 2.60

0.333 3.333 3040-14086 17mg/kg wetAcenaphthene 2.87

0.333 3.333 3040-14088 18mg/kg wetAcenaphthylene 2.92

0.667 3.333 3040-14078 23mg/kg wetAcetophenone 2.62

0.667 3.333 3040-14071 25mg/kg wetAniline 2.36

0.333 3.333 3040-14093 9mg/kg wetAnthracene 3.08

0.333 3.333 3040-14096 9mg/kg wetAzobenzene 3.20

0.333 3.333 3040-14089 7mg/kg wetBenzo(a)anthracene 2.98

0.167 3.333 3040-14095 7mg/kg wetBenzo(a)pyrene 3.15

0.333 3.333 3040-14093 7mg/kg wetBenzo(b)fluoranthene 3.10

0.333 3.333 3040-140105 6mg/kg wetBenzo(g,h,i)perylene 3.51

0.333 3.333 3040-14091 6mg/kg wetBenzo(k)fluoranthene 3.03

1.67 3.333 3040-14070 9mg/kg wetBenzoic Acid 2.35

0.333 3.333 3040-140100 27mg/kg wetBenzyl Alcohol 3.32

0.333 3.333 3040-14084 26mg/kg wetbis(2-Chloroethoxy)methane 2.79

0.333 3.333 3040-14076 25mg/kg wetbis(2-Chloroethyl)ether 2.54

0.333 3.333 3040-14079 23mg/kg wetbis(2-chloroisopropyl)Ether 2.63

0.333 3.333 3040-14092 7mg/kg wetbis(2-Ethylhexyl)phthalate 3.05

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 45 of 61

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

8270D Semi-Volatile Organic Compounds

Batch CK61612 - 3546

0.333 3.333 3040-14091 6mg/kg wetButylbenzylphthalate 3.03

0.333 3.333 3040-14099 28mg/kg wetCarbazole 3.29

0.167 3.333 3040-14088 4mg/kg wetChrysene 2.93

0.167 3.333 3040-140105 6mg/kg wetDibenzo(a,h)Anthracene 3.49

0.333 3.333 3040-14086 16mg/kg wetDibenzofuran 2.87

0.333 3.333 3040-14090 4mg/kg wetDiethylphthalate 3.01

0.333 3.333 3040-14089 8mg/kg wetDimethylphthalate 2.96

0.333 3.333 3040-14092 18mg/kg wetDi-n-butylphthalate 3.08

0.333 3.333 3040-14099 7mg/kg wetDi-n-octylphthalate 3.29

0.333 3.333 3040-14080 6mg/kg wetFluoranthene 2.67

0.333 3.333 3040-14089 14mg/kg wetFluorene 2.98

0.167 3.333 3040-14092 10mg/kg wetHexachlorobenzene 3.07

0.333 3.333 3040-14081 26mg/kg wetHexachlorobutadiene 2.71

1.67 3.333 3040-14087 32mg/kg wetHexachlorocyclopentadiene 2.90 D+

0.333 3.333 3040-14075 22mg/kg wetHexachloroethane 2.51

0.333 3.333 3040-140103 6mg/kg wetIndeno(1,2,3-cd)Pyrene 3.45

0.333 3.333 3040-14084 26mg/kg wetIsophorone 2.80

0.333 3.333 3040-14078 26mg/kg wetNaphthalene 2.61

0.333 3.333 3040-14084 26mg/kg wetNitrobenzene 2.78

0.333 3.333 3040-14068 23mg/kg wetN-Nitrosodimethylamine 2.25

0.333 3.333 3040-14081 22mg/kg wetN-Nitroso-Di-n-Propylamine 2.69

0.333 3.333 3040-14079 7mg/kg wetN-nitrosodiphenylamine 2.63

1.67 3.333 3030-13094 4mg/kg wetPentachlorophenol 3.12

0.333 3.333 3040-14090 6mg/kg wetPhenanthrene 2.99

0.333 3.333 3030-13076 26mg/kg wetPhenol 2.52

0.333 3.333 3040-14093 8mg/kg wetPyrene 3.12

1.67 3.333 3040-14062 26mg/kg wetPyridine 2.07

3.333 30-130742.46 mg/kg wetSurrogate: 1,2-Dichlorobenzene-d4

5.000 30-130914.54 mg/kg wetSurrogate: 2,4,6-Tribromophenol

5.000 30-130783.90 mg/kg wetSurrogate: 2-Chlorophenol-d4

3.333 30-130842.79 mg/kg wetSurrogate: 2-Fluorobiphenyl

5.000 30-130753.76 mg/kg wetSurrogate: 2-Fluorophenol

3.333 30-130822.73 mg/kg wetSurrogate: Nitrobenzene-d5

5.000 30-130773.87 mg/kg wetSurrogate: Phenol-d6

3.333 30-130903.00 mg/kg wetSurrogate: p-Terphenyl-d14

Classical Chemistry

Batch CK61742 - General Preparation

Reference

81.00 97.9-102.1100°FFlashpoint 81

Batch CK61823 - TCN Prep

Blank

1.00 mg/kg wetTotal Cyanide ND

LCS

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

Page 46 of 61

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Quality Control Data

Analyte Result MRL Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

Limit Qualifier

Classical Chemistry

Batch CK61823 - TCN Prep

1.00 5.015 90-110101mg/kg wetTotal Cyanide 5.04

Reference

4.93 48.40 36.1577-206.6

12

102mg/kg wetTotal Cyanide 49.5

Reference

4.96 48.40 36.1577-206.6

12

101mg/kg wetTotal Cyanide 48.9

Batch CK62223 - General Preparation

Blank

0.9 mg/kg wetHexavalent Chromium ND

LCS

0.9 33.32 80-12098mg/kg wetHexavalent Chromium 32.8

LCS Dup

0.9 33.32 2080-12099 0.5mg/kg wetHexavalent Chromium 33.0

Reference

2.7 71.00 20.3-222.598mg/kg wetHexavalent Chromium 69.5

Batch CK62226 - General Preparation

Blank

2.0 mg/kgReactive Cyanide ND

2.0 mg/kgReactive Sulfide ND

LCS

2.0 100.3 0.68-5.414mg/kgReactive Cyanide 4.0

2.0 10.00 0-442mg/kgReactive Sulfide 0.2

Batch CK62236 - General Preparation

Blank

5 umhos/cmConductivity ND

LCS

1411 90-110101umhos/cmConductivity 1420

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

Notes and Definitions

Z18 Temperature is not within 23 +/-2 ºC.

Z17 Temperature is within 23 +/-2 ºC.

Z-10 Soil pH measured in water at 20.8 ºC.

Z-08 See Attached

WL Results obtained from a deionized water leach of the sample.

U Analyte included in the analysis, but not detected

S+ Surrogate recovery(ies) above upper control limit (S+).

Q Calibration required quadratic regression (Q).

D+ Relative percent difference for duplicate is outside of criteria (D+).

D Diluted.

CD+ Continuing Calibration %Diff/Drift is above control limit (CD+).

CD- Continuing Calibration %Diff/Drift is below control limit (CD-).

B+ Blank Spike recovery is above upper control limit (B+).

B- Blank Spike recovery is below lower control limit (B-).

> Greater than.

Sample results reported on a dry weight basisRelative Percent DifferenceRPD

dryAnalyte NOT DETECTED at or above the MRL (LOQ), LOD for DoD Reports, MDL for J-Flagged AnalytesND

MDLMRL

Method Detection LimitMethod Reporting Limit

I/VF/V

Initial VolumeFinal Volume

§ Subcontracted analysis; see attached report123

Range result excludes concentrations of surrogates and/or internal standards eluting in that range.Range result excludes concentrations of target analytes eluting in that range.Range result excludes the concentration of the C9-C10 aromatic range.

Avg Results reported as a mathematical average.NR No Recovery

LOD Limit of Detection

[CALC] Calculated Analyte

LOQ Limit of Quantitation

DL Detection Limit

SUB Subcontracted analysis; see attached report

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.comDependability ♦ Quality ♦ Service

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Client Name: River Hawk Environmental, LLCClient Project ID: General Public Works Projects ESS Laboratory Work Order: 1611473

CERTIFICATE OF ANALYSIS

ESS LaboratoryDivision of Thielsch Engineering, Inc.

BAL Laboratory The Microbiology Division of Thielsch Engineering, Inc.

ESS LABORATORY CERTIFICATIONS AND ACCREDITATIONS

ENVIRONMENTAL

Rhode Island Potable and Non Potable Water: LAI00179

http://www.health.ri.gov/find/labs/analytical/ESS.pdf

Connecticut Potable and Non Potable Water, Solid and Hazardous Waste: PH-0750

http://www.ct.gov/dph/lib/dph/environmental_health/environmental_laboratories/pdf/OutofStateCommercialLaboratories.pdf

Maine Potable and Non Potable Water, and Solid and Hazardous Waste: RI00002

http://www.maine.gov/dhhs/mecdc/environmental-health/water/dwp-services/labcert/documents/AllLabs.xls

Massachusetts Potable and Non Potable Water: M-RI002

http://public.dep.state.ma.us/Labcert/Labcert.aspx

New Hampshire (NELAP accredited) Potable and Non Potable Water, Solid and Hazardous Waste: 2424

http://des.nh.gov/organization/divisions/water/dwgb/nhelap/index.htm

New York (NELAP accredited) Non Potable Water, Solid and Hazardous Waste: 11313

http://www.wadsworth.org/labcert/elap/comm.html

New Jersey (NELAP accredited) Non Potable Water, Solid and Hazardous Waste: RI006

http://datamine2.state.nj.us/DEP_OPRA/OpraMain/pi_main?mode=pi_by_site&sort_order=PI_NAMEA&Select+a+Site:=58715

United States Department of Agriculture Soil Permit: P330-12-00139

Pennsylvania: 68-01752

http://www.depweb.state.pa.us/portal/server.pt/community/labs/13780/laboratory_accreditation_program/590095

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1611473-01

Thielsch Engineering Inc.

Cranston, RI

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

Remarks

Grey silty sand

.750.5

.375#4#10#20#40#60

#100#200

100.098.196.893.377.154.736.325.718.314.4

NP NV

SM A-1-b

3.6975 2.8290 1.03240.7179 0.3155 0.0885

11.16.16 11.21.16

IA

Matthew Colman, P.E.

Laboratory Manager

11.15.16

River Hawk Environmental, LLC

General Public Works Project Marshfield, MA

1611473

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Source of Sample: Stockpile Depth: CompositeSample Number: Stockpile X104

Client:

Project:

Project No: Figure

TEST RESULTS (D422)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 6.7 16.2 40.8 21.9 14.4

6 in

.

3 in

.

2 in

.

in

.

1 in

.

¾ in

.

½ in

.

3/8

in

.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00

Particle Size Distribution Report

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